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2023-02-26  Paul Smith  <psmith@gnu.org>

	GNU Make release 4.4.1
	* NEWS: Set the release number and date.
	* configure.ac: Update the version.
	* README.git: Remind to update doc/make.1.
	* doc/make.1: Update the date.  Fix some "GNU Make" references.
	* doc/make.texi: Update the edition.

	* tests/scripts/options/dash-l: Simplify the test via the helper
	* tests/thelp.pl: Add "exist" and "noexist" operators.

2023-02-21  Paul Smith  <psmith@gnu.org>

	* README.W32: Add Windows 11
	* build_w32.bat: Ditto.

2023-02-21  Paul Smith  <psmith@gnu.org>

	Use a recursive environment if any command needs it
	We only create one target environment for all commands in a recipe.
	Ensure it's set for recursive make if ANY command is recursive, not
	just the first one.

	* src/job.c (start_job_command): Check for any recursive command.
	* tests/scripts/features/jobserver: Test recursion on second line.

2023-02-21  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* src/main.c (main): Install suffix rules near pattern updates

2023-02-20  Paul Smith  <psmith@gnu.org>

	* Makefile.am: Add mkconfig.h to the test error file

2023-02-20  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63821] Don't set up default suffix rules if makefile sets -r
	When built-in rules are disabled by adding -r to MAKEFLAGS in the
	makefile, don't add suffix rules at all so that if suffixes are
	added back via .SUFFIXES, the rules are still not there.

	* src/main.c (main): Set default suffix rules after parsing makefiles.
	* src/default.c (install_default_suffix_rules): Install a default
	suffix rule only if there is no user defined rule.
	* tests/scripts/features/suffixrules: Add tests.

2023-02-20  Paul Smith  <psmith@gnu.org>

	* tests/scripts/misc/general4: Only test empty PATH on UNIX

2023-02-19  Paul Smith  <psmith@gnu.org>

	* gl/modules/make-glob: Avoid glibc glob if bug #866 is present

	* tests/scripts/features/include [AIX]: Set explicit timestamps

	* tests/scripts/features/archives: Set CC properly

	Prerelease GNU Make 4.4.0.91
	* NEWS: Update the date.
	* configure.ac: Change the release.

	* src/makeint.h [CYGWIN]: Use pipe mode for the jobserver

2023-02-19  Paul Smith  <psmith@gnu.org>

	Don't block for child exit if other commands have completed
	Running regression tests on a single CPU system shows that if a child
	exits while we're checking prerequisites we might not notice it, and
	then we might block waiting for the next child to exit before we try
	to do more work even though we could.

	* src/remake.c (update_goal_chain): Remember the command_count before
	we start checking prerequisites and if it is different when we restart
	at the top of the goal chain then don't block.

2023-02-19  Paul Smith  <psmith@gnu.org>

	Clean up depth handling in debug output
	The indentation shown in debug output was misleading.  Increment the
	depth when we are working on a prerequisite, not for the current
	target.

	* src/remake.c (check_dep): Increment depth only on recursion.
	(update_file_1): Ditto.  Don't show "Finished..." if prereqs are
	still running.
	* src/implicit.c (pattern_search): Increment depth for the entire
	search.
	* tests/scripts/features/output-sync: Support debug output when run
	by hand.

2023-02-19  Paul Smith  <psmith@gnu.org>

	* src/makeint.h (WIN32_LEAN_AND_MEAN) [Windows]: Don't redefine.
	Suggested for tcc builds by Christian Jullien <eligis@orange.fr>.

2023-02-19  KO Myung-Hun  <komh78@gmail.com>

	* src/misc.c (ttyname) [OS/2]: Add an implementation for OS/2 kLIBC

2023-02-19  Paul Smith  <psmith@gnu.org>

	Allow jobserver style to be forced to "pipe"
	Some systems that support mkfifo() don't support the usage that GNU
	make wants.  Provide a way to force using "pipe" jobserver mode even
	when mkfifo() is available.

	* src/makeint.h (MK_OS_HURD): Define if we're on Hurd.
	(JOBSERVER_USE_FIFO): Define if we have mkfifo() and we're NOT on
	Hurd.
	* src/main.c (main): Test JOBSERVER_USE_FIFO not HAVE_MKFIFO.
	* src/posixos.c (jobserver_setup): Ditto.
	* maintMakefile: Create a config check test for forcing "pipe" mode.
	* tests/run_make_tests.pl: Show discovered FEATURES in verbose mode.

2023-02-05  Paul Smith  <psmith@gnu.org>

	[SV 63668] Use autoconf to detect the default C++ compiler
	* configure.ac: Add AC_PROG_CXX to search for a C++ compiler.
	(MAKE_CXX): Add the discovered compiler to config.h.
	* src/default.c (default_variables): Use MAKE_CXX as the C++ compiler.

	* doc/make.texi: Fix typo (reported by <mao492479407@163.com>)

2023-02-04  Paul Smith  <psmith@gnu.org>

	* tests/scripts/variables/MAKEFLAGS: Fix some Perl warnings

2023-01-28  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* doc/make.texi: [SV 63689] Fix typos in examples

2023-01-28  Paul Smith  <psmith@gnu.org>

	* src/job.c: Switch from bit operators to flags macros
	* src/remake.c: Ditto.

	[SV 63667] In .POSIX, use shell flags -c when ignoring errors
	* src/variable.c (lookup_variable_for_file): New function to retrieve
	a variable assignment in a file context.
	* src/variable.h (lookup_variable_for_file): Declare it.
	* src/job.c (construct_command_argv): Look up .SHELLFLAGS.  If .POSIX
	is set and we're using the default value, choose -c if we're ignoring
	errors else choose -ec.
	(construct_command_argv_internal): Ditto.
	* tests/scripts/targets/POSIX: Add tests.

2023-01-28  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* tests/scripts/features/archives: [SV 63688] Quote cmd line vars

2023-01-28  Paul Smith  <psmith@gnu.org>

	* README.in: Mention README.z/OS

2023-01-15  Paul Smith  <psmith@gnu.org>

	* tests/test_driver.pl: Convert z/OS answers for regex output
	Allow z/OS customizations to apply to regex output matching.
	* tests/scripts/features/output-sync: Use a regex for Terminated.
	* tests/scripts/features/temp_stdin: Ditto.

	* tests/scripts/features/archives: Use the configured compiler for CC

	* configure.ac: Delay setting HAVE_GUILE until we're sure

2023-01-14  Paul Smith  <psmith@gnu.org>

	Prerelease GNU Make 4.4.0.90
	* NEWS: Update the date.
	* README.git: Fix a typo.
	* maintMakefile (check-alt-config): Report success.
	(upload-*): Use the gnulib gnupload script for uploads.

2023-01-11  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/reinvoke: Warn about closing STDIN.
	* tests/scripts/features/temp_stdin: Ditto.
	* tests/scripts/options/dash-f: Ditto.

2023-01-11  Eli Zaretskii  <eliz@gnu.org>

	[SV 63638] Fix processing PATH on MS-Windows
	* src/variable.c (sync_Path_environment): Pass only the value of
	PATH to convert_Path_to_windows32, excluding the "PATH=" part.

2023-01-08  Paul Smith  <psmith@gnu.org>

	Update support for OS/2
	Patches provided by KO Myung-Hun <komh78@gmail.com>

	* NEWS: Add a note.
	* AUTHORS: Add a new author.
	* README.OS2: Updates to build instructions.
	* src/dir.c (dir_contents_file_exists_p): Use a stack copy when
	modifying a const string.
	* src/job.c (construct_command_argv_internal): Ditto.
	Reuse variables rather than re-defining them.
	(exec_command): Cast a const string (we don't change it anyway).
	* src/getopt.c (_getopt_initialize): Reference unused variables.
	(_getopt_internal): Add block braces to quiet the compiler.
	* src/main.c (main): Cast argument to child_execute_job().
	* src/posixos.c (set_blocking): Reference unused variables.
	* src/remake.c (f_mtime): Delete useless code.

2023-01-08  Paul Smith  <psmith@gnu.org>

	[SV 17448] Ignore whitespace around $(file ...) names
	The other issues related to whitespace reported in this bug are
	not addressed by this change.

	* src/functions.c (func_file): Strip whitespace from the start and
	end of the filename provided to the $(file ...) function.
	* tests/scripts/functions/file: Add tests for this.
	* tests/test_driver.pl: Use 3-arg version of open().

2023-01-08  Paul Smith  <psmith@gnu.org>

	[SV 61218] Ensure MAKEFLAGS is expanded even with -e
	If -e was given we weren't expanding MAKEFLAGS before passing it
	through the environment to jobs: we don't expand variables we
	receive from the environment and when -e is given we set the
	origin of MAKEFLAGS to "environment override".  Check for MAKEFLAGS
	specifically, which seems like a hack but I don't have a better
	idea offhand.

	* src/main.c (main): Drive-by: use o_default for MAKEOVERRIDES.
	* src/variable.c (target_environment): Always expand MAKEFLAGS
	regardless of the origin type.
	* tests/scripts/options/dash-e: Create a test.

2023-01-08  Paul Smith  <psmith@gnu.org>

	[SV 62654] Support GNU Make on z/OS
	Original patches provided by Igor Todorovski <itodorov@ca.ibm.com>
	Reworked by Paul Smith <psmith@gnu.org>.
	Thanks to IBM for providing a test system.

	* NEWS: Announce support.
	* AUTHORS: Ditto.
	* README.zOS: Provide details on building GNU Make on z/OS.
	* build.sh (get_mk_var): z/OS sh has a strange bug which causes it to
	generate extra lines of output: rework the function to print output
	as we compute it instead of collecting it into a variable, which
	works around this bug.
	* src/makeint.h: Declare MK_OS_ZOS if we're building for z/OS.
	* src/arscan.c: Don't include <ar.h> on z/OS.
	* src/job.c: We can't change environ in ASCII mode on z/OS.
	* src/main.c: Ditto.  Also we can't use pselect() on z/OS.
	* src/posixos.c: pselect() seems to hang on z/OS: don't use it.
	* tests/run_make_tests.pl: Handle different exit codes on z/OS.
	* tests/test_driver.pl: Preserve some special z/OS env.vars.
	Add special checks to output comparisons when on z/OS.
	* tests/scripts/features/archives: Don't validate names.  Don't
	try to compile empty files as IBM compilers complain.
	* tests/scripts/features/shell_assignment: Fix octal value of #.
	* tests/scripts/features/temp_stdin: Don't print "term".
	* tests/scripts/functions/shell: Handle shell exit codes.
	* tests/scripts/targets/ONESHELL: Ditto.
	* tests/scripts/targets/POSIX: sh -x prints differently.
	* tests/scripts/variables/SHELL: Ditto.

2023-01-08  Paul Smith  <psmith@gnu.org>

	Create src/mkcustom.h which is included by config.h
	Put declarations for missing functions which we create in src/misc.c
	into a file which is included by config.h via AH_BOTTOM().  This
	ensures those prototypes are available, even in files added to
	lib/... from gnulib.

	* src/mkcustom.h: Add a new file with function declarations.
	* configure.ac: Include src/mkcustom.h in config.h with AH_BOTTOM()
	* Makefile.am: Add the header to the SRCS list.
	* src/makeint.h: Remove content that we added to src/mkcustom.h.
	* src/config.ami: Add #include "mkcustom.h" to specialized config.h.
	* src/config.h-vms: Ditto.
	* src/config.h.W32: Ditto.
	* src/configh.dos: Ditto.

2023-01-08  Paul Smith  <psmith@gnu.org>

	Include <strings.h> globally
	Various code uses str{,n}casecmp() so include <strings.h>, if it
	exists, everywhere.

	* configure.ac: Check for <strings.h> explicitly.
	* src/makeint.h: Include it if HAVE_STRINGS_H, for str{,n}casecmp().
	* src/job.c: Remove include of <strings.h>.
	* src/main.c: Ditto.

2023-01-07  Paul Smith  <psmith@gnu.org>

	* gl/lib/glob.c: Don't try to support _LIBC, don't use __stat()

2023-01-03  Paul Smith  <psmith@gnu.org>

	[SV 63609] Avoid buffer overrun in --warn-undefined-variables
	Reported by Dmitry Goncharov <dgoncharov@users.sf.net>

	* src/variable.c (struct defined_vars): Create a struct that holds the
	name and length of each variable name.
	(warn_undefined): Check the lengths before comparing the contents.
	* tests/scripts/options/warn-undefined-variables: Add a test.

2023-01-03  Paul Smith  <psmith@gnu.org>

	[SV 14927] Allow parallel builds for archives
	Compare the timestamp of the object file (if it exists) with the
	archived object and if the object file is newer, ensure it's updated
	in the archive.

	* NEWS: Announce the new capability.
	* doc/make.texi (Dangers When Using Archives): Explain how to enable
	parallel builds with archives.
	* src/remake.c (f_mtime): For archive element files check the mod
	time of the object file (if it exists) against the archive object
	(if it exists).
	* tests/scripts/features/archives: Add tests for this capability.

2023-01-02  Paul Smith  <psmith@gnu.org>

	[SV 61463] Don't export inherited private variables
	If a parent target has an exported variable that is private, don't
	export it in child targets.

	* NEWS: Mention this change.
	* src/variable.c (target_environment): Ignore private inherited
	variables.
	* tests/thelp.pl: Add a new "env" operation to show env.var. values.
	* tests/scripts/variables/private: Verify this new behavior.

2023-01-02  Paul Smith  <psmith@gnu.org>

	Update ancient glob/fnmatch implementations
	I looked again at trying to use the latest gnulib implemenentations
	of GNU glob and fnmatch, and the effort required to extract them
	from gnulib and make them portable to systems which don't support
	configure is simply far too daunting for me.  However it's clear
	that the previous implementations are growing too long on the tooth
	to continue to be used without some maintenance, so perform some
	upkeep on them.

	- Remove support for pre-ANSI function definitions.
	- Remove the obsolete "register" keyword.
	- Assume standard ISO C90/C99 header file support.
	- Assume standard ISO C "void" and "const" support.
	- Avoid symbols prefixed with "__" as they're reserved.

	* maintMakefile: Add a rule to verify lib has the latest content.
	* src/dir.c: Use void* not __ptr_t which was removed.
	* gl/lib/glob.c: See above.
	* gl/lib/fnmatch.in.h: See above.
	* gl/lib/glob.in.h: See above.
	* gl/lib/fnmatch.c: See above.  Remove __strchrnul(): it is not
	checked anywhere and is only used in one place anyway.

2023-01-02  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Special Targets): Fix minor typo
	Reported by Andrey Melnikov <vafilor@gmail.com>.

2023-01-01  Paul Smith  <psmith@gnu.org>

	Don't free uninitialized hash_table
	* src/dir.c (clear_directory_contents): We use ht_vec to mark when
	we have initialized the hash_table: don't free if it's NULL.
	(everywhere): Use NULL instead of 0 when working with pointers.

	* maintMakefile: Add missing quote

	Convert references from "GNU make" to "GNU Make"

	Update to the latest gnulib stable branch
	* bootstrap.conf: Request the latest gnulib stable branch.
	* README.git: Recommend the argument form of autogen/autopull.
	* bootstrap: Import the latest version of bootstrap.
	* bootstrap-funclib.sh: Ditto.
	* autogen.sh: Ditto.
	* autopull.sh: Ditto.

	Update the copyright year on all files

2022-12-31  Paul Smith  <psmith@gnu.org>

	Apply spelling fixes discovered by Codespell
	* maintMakefile: Apply spelling fixes.
	* src/file.c: Ditto.
	* src/misc.c: Ditto.
	* src/remake.c: Ditto.
	* src/vmsjobs.c: Ditto.
	* src/w32/pathstuff.c: Ditto.
	* tests/test_driver.pl: Ditto.
	* tests/run_make_tests.com: Ditto
	* tests/scripts/features/implicit_search: Ditto
	* tests/scripts/features/output-sync: Ditto
	* tests/scripts/features/patternrules: Ditto
	* tests/scripts/features/se_explicit: Ditto
	* tests/scripts/features/statipattrules: Ditto
	* tests/scripts/functions/foreach: Ditto
	* tests/scripts/variables/MAKEFLAGS: Ditto

2022-12-31  Paul Smith  <psmith@gnu.org>

	Avoid using false(1) in regression tests
	The POSIX standard only requires false(1) to return a "non-zero" exit
	code; almost all systems return 1 but some (Solaris!!!) return 255 or
	possibly even other values.  Use our helper "fail" instead.

	* tests/thelp.pl: Have the "fail" command obey -q.
	* tests/scripts/features/parallelism: Helper -q no longer prints fail.
	* tests/scripts/targets/POSIX: Replace false with #HELPER# -q fail 1.
	* tests/scripts/variables/MAKEFLAGS: Ditto.
	* tests/scripts/variables/SHELL: Ditto.

2022-12-26  Paul Smith  <psmith@gnu.org>

	Make bootstrap.bat more portable
	Using backslashes in a sed command line is tricky as different programs
	use them differently as escape sequences.  Eli Zaretskii points out
	that Windows "echo" doesn't do any processing, so rework all our sed
	invocations to use script files created by echo.

	* bootstrap.bat: Use echo to create sed script files instead of -e.
	* Basic.mk.template: Fix typo in the comments.
	* .gitignore: Ignore any .sed scripts.

2022-12-24  Paul Smith  <psmith@gnu.org>

	* NEWS: Add a section for the next release
	Add a note for the MAKEFLAGS enhancements.

2022-12-24  Paul Smith  <psmith@gnu.org>

	[SV 63439, SV 63452] Don't warn on undefined internal variables
	Don't generate undefined variable warnings for variables that are
	internal / special to make and where the empty string is valid.
	Rather than defining them to empty, which could introduce unwanted
	behavior, keep a list of variable names which we should never warn
	about.

	* src/variable.h (warn_undefined): Convert the macro to a function.
	* src/variable.c (defined_vars): Always "defined" variable names.
	(warn_undefined): Implement as a function and check against the
	defined_vars before generating a warning.
	* src/read.c (read_all_makefiles): No need to reset warning flag.
	* src/vpath.c (build_vpath_lists): Ditto.
	* tests/scripts/options/warn-undefined-variables: Expand all the
	pre-defined variables to ensure warnings are not generated.

2022-12-24  Paul Smith  <psmith@gnu.org>

	[SV 63552] Change directories before constructing include paths
	* src/makeint.h (reset_makeflags): New function to handle changing
	MAKEFLAGS from within makefiles.  Remove decode_env_switches().
	* src/variable.c (set_special_var): Call reset_makeflags() instead
	of various internal methods.
	* src/main.c (decode_env_switches): Only internal now so make static.
	(decode_switches): Don't invoke construct_include_path() yet.
	(reset_makeflags): Decode env switches and construct include paths.
	(main): Construct include paths after we process -C options.
	* tests/scripts/options/dash-C: Rewrite to use new test constructs.
	Add a test using both -C and -I together.
	Add a test for multiple -C options.

2022-12-20  Paul Smith  <psmith@gnu.org>

	tests [WINDOWS32]: Support Strawberry Perl on Windows
	Strawberry Perl has some different behaviors from ActiveState Perl
	which impact the test suite:

	- Avoid Perl's chomp() as it may not remove CRs; chomp() may remove
	  only the final NL but not the CR in a CRNL line ending.
	- Strawberry Perl doesn't support ActiveState's system(1, ...) form.
	- Strawberry Perl (or msys?) does something weird with "/tmp" when
	  provided to exec(), replacing it with the user's %TEMP%.
	- Strawberry Perl uses msys paths like /c/foo instead of C:\foo.

	* tests/test_driver.pl (get_osname): Strawberry Perl uses 'msys' as
	its $^O so if we see that use a port of 'W32'.
	(_run_with_timeout): Strawberry Perl doesn't support the special
	system(1, ...) form of system() so use POSIX standard fork/exec.
	(compare_answer): Paths generated by Strawberry Perl use msys path
	format (e.g., /c/foo instead of C:\foo); check for those differences
	and compare RE against both the unmodified and modified log.
	* tests/run_make_tests.pl (set_defaults): Switch from chomp to s///
	to remove CRNL and NL line endings.
	* tests/scripts/features/errors: Executing directories on Strawberry
	will give an error; translate it to Windows error output format.
	* tests/scripts/features/output-sync: Ditto.
	* tests/scripts/features/temp_stdin: Ditto.
	* tests/scripts/functions/realpath: Ditto.
	* tests/scripts/options/dash-I: Ditto.
	* tests/scripts/variables/INCLUDE_DIRS: Ditto.
	* tests/scripts/misc/close_stdout: /dev/full is reported as existing
	on Strawberry Perl, but it doesn't do anything.  Skip the test.
	* tests/scripts/variables/MAKEFLAGS: When an argument containing
	/tmp is passed to a program via exec(), something replaces it with
	the expansion of the %TEMP% variable.  Instead of using /tmp create
	a local directory to use.

2022-12-20  Paul Smith  <psmith@gnu.org>

	* tests/test_driver.pl: Remember if something failed and report it

2022-12-19  Paul Smith  <psmith@gnu.org>

	[WINDOWS32] Remove CRNL from FormatMessage() result string
	Sometimes the error message is expected to contain a newline, other
	times it is not.  Also the result of FormatMessage() sometimes ends
	in CRNL already: when printed via fprintf() the final newline is
	converted to CRNL, giving an output of CRCRNL which causes tests
	to fail to match.  Remove any CR/NL chars from the result string.

	* src/job.c (reap_children): Add \n to the error message fprintf.
	(exec_command): Ditto.
	* src/w32/subproc/w32err.c (map_windows32_error_to_string): Remove
	any trailing CR or NL from the string before returning.

2022-12-18  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63537] Document and test flippable switches
	* doc/make.texi (Options/Recursion): Clarify that MAKEFLAGS values
	from the environment have precedence over those set in the makefile.
	* tests/scripts/variables/MAKEFLAGS: Check boolean switches -k/-S,
	-w/--no-print-directory and -s/--no-silent as follows:
	1. A switch can be enabled or disabled on the command line.
	2. A switch can be enabled or disabled in env.
	3. A switch can be enabled or disabled in makefile.
	4. Command line beats env and makefile.
	5. Env beats makefile.
	6. MAKEFLAGS contains each specified switch at parse and build time.
	7. If switches are specified in multiple origins, MAKEFLAGS contains
	   the winning switch at parse and build time.
	8. MAKEFLAGS does not contain the losing switch.
	Also test that --debug settings from different origins are combined
	together into one option.

2022-12-18  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63537] Pass enabled-by-default switches to submake
	Certain switches, such as -S or --no-silent, turn on behavior that is
	enabled by default.  When a switch is specified via the command line,
	makefile, or env, ensure the switch is added to MAKEFLAGS.

	* src/main.c (struct command_switch): Add bit "specified".
	(switches): Initialize command_switch->specified.
	(decode_switches): Set command_switch->specified.
	(define_makeflags): Check command_switch->specified.

2022-12-18  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63537] Remember the origin of command line options
	Certain options can be flipped on and off: -k/-S, -s/--no-silent, and
	-w/--no-print-directory.  Ensure they behave as follows:
	 1. A switch can be enabled or disabled on the command line.
	 2. A switch can be enabled or disabled in env.
	 3. A switch can be enabled or disabled in makefile.
	 4. Command line beats env and makefile.
	 5. Env beats makefile.

	* src/main.c: Add variables to hold the origin of relevant options.
	(struct command_switch): Add origin field.
	(switches): Set a pointer to hold the origin of relevant options.
	(decode_switches): For any switch that can be specified in makefile or
	env, honor the switch only if cs->origin is not set or the specified
	origin beats cs->origin.  Set cs->origin when relevant.

2022-12-18  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63537] Fix setting -w in makefiles
	* src/makeint.h: Replace print_directory flag with should_print_dir().
	* src/main.c (main): Remove print_directory flag and related code.
	(should_print_dir): Create.
	* src/output.c (output_dump): Use should_print_dir().
	(output_start): Ditto.

2022-12-18  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63484] Force included makefiles to be explicit
	Ensure included makefiles are not treated as intermediate, even if
	they are created by an implicit rule.
	Reported by Patrick Oppenlander <patrick.oppenlander@gmail.com>.

	* src/read.c (eval_makefile): Mark makefiles as explicit.
	* tests/scripts/features/include: Add a test.

2022-12-18  Paul Smith  <psmith@gnu.org>

	[SV 63516] [DOS] Support include files with drivespecs
	* src/makeint.h (HAVE_DRIVESPEC): Create a macro to check.
	* src/main.c (.FEATURES): Add "dospaths" as a feature.
	* src/read.c (eval_makefile) [DOS]: If the included makefile name
	starts with a drivespec, don't search the include directories.
	* doc/make.texi (Include): Document this behavior.
	* tests/scripts/features/include: Add a test.

	* src/job.c (new_job): [SV 63510] Trace phony prerequisite rebuilds

	* configure.ac: Update for a new release
	* README.git: Add some packages needed for building from Git.
	* AUTHORS: Updates.

2022-11-28  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63417] Ensure global .NOTINTERMEDIATE disables all intermediates
	Fix .NOTINTERMEDIATE without prerequisites to disable intermediate
	status for all targets.

	* src/makeint.h: Declare extern no_intermediates.
	* src/main.c: Add global definition of no_intermediates.
	* src/file.c: Remove static no_intermediates to use global variable.
	(remove_intermediates): Check no_intermediates.
	* src/implicit.c (pattern_search): For a file found by implicit search
	set file->notintermediate if no_intermediates is set.
	* src/remake.c (update_file_1): Don't set file->secondary for a
	pre-existing file if no_intermediates is set.  The check for
	no_intermediates here is redundant, but won't hurt: keep it in case
	things change so that it matters.
	* tests/scripts/targets/NOTINTERMEDIATE: Fix a test.

2022-11-28  Paul Smith  <psmith@gnu.org>

	* doc/make.texi: Use $(firstword) rather than $(word 1,)

2022-11-28  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63347] Always add command line variable assignments to MAKEFLAGS
	This commit introduces two visible changes:
	1. Keep command line variable assignments in MAKEFLAGS at all times,
	   even while parsing makefiles.
	2. Define makeflags immediately when a makefile modifies MAKEFLAGS.

	The new MAKEFLAGS and MAKEOVERRIDES initialization procedure:
	1. decode_switches (argc, argv, o_command) is called to parse command
	   line variable assignments.
	2. Command line variable assignments go through quote_for_env.
	   Initialize -*-command-variables-*- to the quoted values.
	3. MAKEOVERRIDES is initialized to refer to -*-command-variables-*-
	   with origin o_env to keep the definitions in the database intact.
	4. define_makeflags() is called which adds MAKEOVERRIDES to MAKEFLAGS.
	5. Makefiles are parsed.  If a makefile modifies MAKEFLAGS, the new
	   value of MAKEFLAGS is defined right away.
	6. Env switches are decoded again as o_env.  The definitions set by
	   decode_switches at step 1 stay intact, as o_command beats o_env.

	We must preserve the original intact definitions in order to detect
	failure cases; for example:
	  $ cat makefile
	  all:; $(hello)
	  $ make hello='$(world'
	  makefile:1: *** unterminated variable reference.  Stop.

	* src/makeint.h: Declare enum variable_origin, struct variable and
	define_makeflags().  Add parameter origin to decode_env_switches().
	* src/main.c (define_makeflags): Remove "all". If a variable is
	assigned on the command line then append MAKEOVERRIDES to MAKEFLAGS.
	(decode_env_switches): Replace parameter env with origin.
	(decode_switches): Replace parameter env with origin.
	Treat origin == o_command as env == 0.
	(handle_non_switch_argument): Replace parameter env with origin.
	Treat origin == o_command as env == 0.
	(main): Call decode_switches() with origin==o_command before parsing
	makefiles.  Call decode_switches() with origin==o_env after parsing
	makefiles.
	* src/variable.c (set_special_var): Define makeflags at parse time,
	each time a makefile modifies MAKEFLAGS.
	(do_variable_definition): Strip command line variable assignments from
	MAKEFLAGS before appending extra flags.  set_special_var() adds them
	back.
	* tests/scripts/variables/MAKEFLAGS: Add tests.

2022-11-16  Paul Smith  <psmith@gnu.org>

	* src/main.c (main): [SV 63373] Don't use macros with memcmp()
	Reported by djm <mccannd@uk.ibm.com>

2022-11-15  Paul Smith  <psmith@gnu.org>

	Add specific hints for errors due to invalid conditionals
	* src/read.c (eval): If "missing separator" appears to be due to
	missing space after ifeq/ifneq, give a hint about the error.
	* tests/scripts/misc/failure: Check for these types of failures.
	* tests/scripts/variables/special: Move error checking unrelated
	to special variables, to misc/failure.

2022-11-13  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63333] Be more lenient when failing to create temporary files
	If make cannot create a temporary lock file for output sync, continue
	without output sync enabled rather than dying.

	However, if make cannot store a makefile from stdin to a temporary
	file that is still a fatal error.

	* misc.c (get_tmppath): Keep running on failure to generate a
	temporary file name.
	(get_tmpfd): Keep running on failure to get a temporary file.
	(get_tmpfile): Keep running on failure to open a temporary file.
	Ensure memory is freed if we return an error.
	* posixos.c (os_anontmp): Keep running on failure to open an
	anonymous temporary file.
	* output.c (setup_tmpfile): Print an error on failure to create an
	output sync lock file.
	* main.c (main): Die on failure to store makefile from stdin to a
	temporary file.
	* tests/scripts/features/output-sync: Add tests.
	* tests/scripts/features/temp_stdin: Ditto.

2022-11-13  Paul Smith  <psmith@gnu.org>

	Keep going if we can't connect to the jobserver
	* src/posixos.c (jobserver_parse_auth): Don't invoke fatal() if we
	can't connect to an existing jobserver: just keep going without it.
	* src/w32/w32os.c (jobserver_parse_auth): Ditto.
	* tests/scripts/features/jobserver: Add a test for invalid FIFO
	auth files.

	* src/dir.c (dir_contents_file_exists_p): Show dir name in error.
	If we fail to read a directory show the directory name in the error
	message.  Pass struct directory instead of directory_contents to
	allow that.
	(dir_file_exists_p): Change dir_contents_file_exists_p caller.
	(open_dirstrem): Ditto.

	* src/main.c (main): [SV 63307] Handle SIGPIPE as a fatal signal
	Always ignoring SIGPIPE is visible to child processes.

2022-11-13  Paul Smith  <psmith@gnu.org>

	[SV 63315] tests: Simplify TERM signaling
	Tests that try to kill the make process were not behaving as expected
	on OpenBSD: the signal was sent from make to its children but the
	sleep didn't die.  Something odd about the way the shell treats TERM.
	To reduce platform dependencies add "term" to the helper tool and run
	that instead of kill / sleep.

	* tests/thelp.pl: Add a new operation "term" that takes a PID.
	* tests/scripts/features/output-sync: Use it.
	* tests/scripts/features/temp_stdin: Ditto.

2022-11-13  Paul Smith  <psmith@gnu.org>

	[SV 63315] Allocate function names when defining functions
	* src/function.c (define_new_function): Don't keep a pointer to the
	user-provided name of a user-defined function: if the .so is unloaded
	it will point to garbage.  Add the name to the strcache instead.

2022-11-13  Paul Smith  <psmith@gnu.org>

	tests: Don't convert \ to / when checking regex's
	When tests compare the output they will try converting backslashes
	to slashes to see if that works.  When we compare using regex's,
	we can't do that because backslashes can escape special characters.

	* tests/test_driver.pl (compare_output): Clean up this function.
	(compare_answer_vms) [VMS]: Comparing answers on VMS is complex;
	move all of it into its own function returning 0/1.
	(compare_answer): A new function to compare answers: return 0/1.
	Remember the CRLF->LF conversion forever; only check \ -> / when
	we compare strings, not regex's.

2022-11-13  Justine Tunney  <jtunney@gmail.com>  (tiny change)

	* src/hash.c (jhash_string): Help the compiler optimize the hash
	Invoke memcpy() with a constant length, where possible.

2022-11-12  Paul Smith  <psmith@gnu.org>

	* src/config.h.W32 [TCC]: Only redefine strtoll if not defined

2022-11-09  Eli Zaretskii  <eliz@gnu.org>

	* src/config.h.W32: Fix last change.

2022-11-05  Eli Zaretskii  <eliz@gnu.org>

	Fix build with Tiny C
	* src/config.h.W32 (strtoll, strtoull) [__TINYC__]: Redirect to
	_strtoi64 and _strtoui64, respectively.  Reported by Christian
	Jullien <eligis@orange.fr>.

2022-10-31  Paul Smith  <psmith@gnu.org>

	Release GNU Make 4.4
	* NEWS: Update the version and date.
	* configure.ac: Update the version.
	* doc/make.texi: Update the EDITION.

	* README.git: Update and clarify release operations

	Fix issues found by ASAN and Coverity
	* tests/test_driver.pl: Preserve the LSAN_OPTIONS variable.
	* tests/scripts/targets/ONESHELL: Don't set a local variable.
	* tests/scripts/functions/let: Test empty let variable.
	* src/posixos.c (osync_parse_mutex): Free existing osync_tmpfile.
	* src/misc.c (get_tmpfd): Set umask() before invoking mkstemp().
	* src/ar.c (ar_parse_name): Check invalid name (shouldn't happen).
	* src/function.c (define_new_function): Free previous function entry
	when replacing it with a new one.
	* src/job.c (child_execute_job): Initialize pid for safety.
	(construct_command_argv_internal): In oneshell mode ensure that the
	returned argv has the right format (0th element is a pointer to the
	entire buffer).

2022-10-29  Paul Smith  <psmith@gnu.org>

	Avoid C99 constructs
	Although gnulib requires C99, most of the code does compile with a
	C90 compiler (perhaps with a lot of warnings).  Reinstate our C90
	configuration test, and clean up a few C99 things that crept in.

	* src/job.c (construct_command_argv_internal): Don't use loop-local
	variables or C++ comments.
	* src/read.c (eval_makefile): Don't use loop-local variables.

2022-10-29  Paul Smith  <psmith@gnu.org>

	* build.sh: Allow a "keep-going" mode during builds

2022-10-29  Paul Smith  <psmith@gnu.org>

	tests: Avoid the use of File::Temp->newdir()
	This was added in Perl 5.8 but some systems still only provide older
	versions such as Perl 5.6.  We don't really need it anyway.
	Paul Eggert <eggert@cs.ucla.edu> reported this issue.

	* tests/README: Update this to be a bit more modern.
	* tests/test_driver.pl: Delete the $TEMPDIR variable.
	* tests/scripts/features/temp_stdin: Use $temppath not $TEMPDIR.

2022-10-29  Paul Smith  <psmith@gnu.org>

	* src/posixos.c (os_anontmp): [SV 63287] Only fail O_TMPFILE once
	Reported by Dmitry Goncharov <dgoncharov@users.sf.net>.

2022-10-28  Paul Smith  <psmith@gnu.org>

	[SV 62174] Force locale to be "C" before retrieving error messages
	We attempt to do this with POSIX::setlocale() but apparently on some
	systems (AIX) this isn't sufficient.  So, in addition force the LC
	environment variables to use "C".
	Reported by Dmitry Goncharov <dgoncharov@users.sf.net>.

	* tests/run_make_tests.pl: Move the global setup into set_default().
	Force the %ENV locale variables to use the ones we'll use when running
	make, then reset them back again after we find error messages.

2022-10-27  Paul Smith  <psmith@gnu.org>

	* src/job.c: [SV 63185] Don't use ifdef with HAVE_DECL_* macros

2022-10-25  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/exec: Don't test with C shells
	Using C shells (csh, tcsh) with make is known to be problematic due
	to incorrect ways it handles open file descriptors, at least.  If
	the user's shell is *csh then don't try it during exec tests.

2022-10-25  Paul Smith  <psmith@gnu.org>

	Increase the test framework timeout from 5s to 60s
	It seems that some of the test environments hit the 5s timeout on
	some tests.  Since it doesn't really matter, as long as we don't
	hang forever, increase the timeout to 60s.

	* tests/test_driver.pl: Increase $test_timout to 60.  We don't need
	to handle VMS timeouts specially anymore.
	* tests/scripts/features/parallelism: We don't need to override the
	default timeout anymore.
	* tests/scripts/features/patternrules: Remove confusing comment.

2022-10-25  Paul Smith  <psmith@gnu.org>

	* Makefile.am (check-regression): Add a random suffix to results file
	Put the results into a subdirectory for easy unpacking.
	* .gitignore: Ignore it.

2022-10-24  Paul Smith  <psmith@gnu.org>

	Release GNU Make 4.3.92
	* configure.ac: Modify the release version.
	* NEWS: Update the version and date.

2022-10-24  Paul Smith  <psmith@gnu.org>

	[SV 63260] Don't recurse forever if setup_tmpfile() fails
	If we fail during setup_tmpfile() we'll try to write an error, which
	will invoke setup_tmpfile() again, etc.  Avoid infinite recursion.
	Original patch by Dmitry Goncharov <dgoncharov@users.sf.net>

	* src/output.c (setup_tmpfile): Remember we're in this function and
	return immediately if we enter it during recursion.
	(message): Remember the starting location and use that instead of
	fmtbuf.buffer.
	(error): Ditto.
	(fatal): Ditto.

2022-10-24  Paul Smith  <psmith@gnu.org>

	* src/output.c (_outputs): Don't use invalid output sync FDs
	Just write to stdout/stderr in this situation.

	* src/misc.c (get_tmpdir): Report errors if tmpdirs are invalid
	* src/main.c (main): Set up initial temporary directories.

2022-10-23  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* src/posixos.c (os_anontmp): If O_TMPFILE fails try dup() method.

2022-10-23  Paul Smith  <psmith@gnu.org>

	* src/rule.c (get_rule_defn): Don't use STRING_SIZE_TUPLE in mempcpy
	If mempcpy() is a macro then STRING_SIZE_TUPLE won't compile.

2022-10-23  Paul Smith  <psmith@gnu.org>

	Provide a maintainer-only debug method
	Generating debug logs to stdout or stderr makes it impossible to
	run tests etc. so create a dumb DBG facility to log to a temp file.
	This exists only in maintainer mode and the DBG macro gives a
	compile error if it's used in non-maintainer mode.

	* src/makeint.h (DBG): Call dbg() in maintainer mode, else error.
	(dbg): Define it in maintainer mode.
	* src/misc.c (dbg): Open a log file for append, write, then close.

2022-10-22  Paul Smith  <psmith@gnu.org>

	* configure.ac: Check that we can link with Guile
	On multi-arch systems we may be able to find the header file but
	not successfully link the library.

2022-10-22  Paul Smith  <psmith@gnu.org>

	Set PATH_MAX on systems without a default value
	Some systems (HURD) use fully-dynamic pathnames, with no limit.
	We can't support this without significant effort so for now set
	PATH_MAX to a large value.

	* src/makeint.h: Set PATH_MAX to 4096 if not set and MAXPATHLEN
	is also not set.  Remove MAXPATHLEN setting: we won't use it.
	* src/misc.c (get_path_max): If we can't get the path max via
	pathconf() use the default PATH_MAX.
	* src/dir.c (find_directory) [W32]: Use MAX_PATH not MAXPATHLEN.
	(local_stat) [W32]: Ditto.
	* src/job.c (create_batch_file) [W32]: Ditto.
	* src/remake.c (name_mtime) [W32]: Ditto.
	* src/w32/w32os.c (os_anontmp) [W32]: Ditto.

2022-10-22  Paul Smith  <psmith@gnu.org>

	[SV 63098] Enhance detection of missing peer also-make targets
	The previous attempt to detect missing peer targets for implicit
	rules had some holes.  Move the detection to notice_finished_file().

	* src/remake.c (check_also_make): If we don't have the current mtime
	for the file, obtain it.
	(update_goal_chain): Don't call check_also_make() here.
	(check_dep): Ditto.
	(notice_finished_file): If we finished running an implicit rule that
	has also_make targets, invoke check_also_make().

2022-10-22  Paul Smith  <psmith@gnu.org>

	Collect failure details when the regression tests fail
	* README.in: Add a section on running regression tests.
	* Makefile.am (check-regression): Capture the test run output, and
	on failure collect configure and test results into a tar file.

2022-10-22  Paul Smith  <psmith@gnu.org>

	Enhance tests to work on different systems
	The GNU platform testers reported a number of test errors on
	different systems; try to address them.

	* tests/thelp.pl: A number of tests timed out with a 4-second
	timeout.  Increase the default timeout to 10 seconds.
	* tests/run_make_tests.pl: Executing directories on cygwin behaves
	differently in Perl than make so skip these tests there.
	* tests/scripts/options/symlinks: Check for the symlink feature
	in make, rather than whether the system supports them.
	* tests/scripts/features/implicit_search: On some systems "false"
	exits with a different exit code.  Use the helper instead.
	* tests/scripts/features/loadapi: Ditto.
	* tests/scripts/features/output-sync: Sleep before make -f bar in
	the first test as well as the second one.
	* tests/scripts/features/exec: Skip on cygwin, which seems to
	be "UNIX" but where scripts don't run normally.
	* tests/scripts/misc/fopen-fail: Skip on cygwin, where make
	eventually exits with exit code 0 and no error messages.

2022-10-22  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63243] tests: Avoid SIGTERM racing with make error messages
	Original patch from Frank Heckenbach <f.heckenbach@fh-soft.de>.

	* tests/scripts/features/output-sync: Introduce a sleep to let make
	write its error message.  Some systems use different names for
	SIGTERM so match with a regex.
	* tests/scripts/features/temp_stdin: Ditto.

2022-10-22  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63236] Fix getloadavg related error message on AIX
	On AIX getloadavg keeps errno intact when it fails, resulting in a
	bogus error message from make.

	* src/job.c (load_too_high): Reset errno before calling getloadavg.

2022-10-22  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63248] Ignore SIGPIPE
	Don't terminate when make's output is redirected to a pipe and the
	reader exits early; e.g.:
	  $ echo 'all:; sleep 2' | make -f- -j2 -O |:

	This lets us unlink temporary files, and tell the user that make was
	not able to write its output.
	Reported by Frank Heckenbach <f.heckenbach@fh-soft.de>.

	* src/main.c (main): Ignore SIGPIPE.
	* src/posixos.c (osync_clear): Fix a memory leak.

2022-10-18  Paul Smith  <psmith@gnu.org>

	* NEWS: Release GNU make 4.3.91

	* AUTHORS: Update the authors list.

	* NEWS: Use GNU Make instead of GNU make
	* README.git: Ditto.
	* README.Amiga: Ditto.
	* README.DOS: Ditto.
	* README.OS2: Ditto.
	* README.VMS: Ditto.
	* README.W32: Ditto.
	* README.customs: Ditto.
	* make-gdb.py: Ditto.
	* tests/run_make_tests.pl: Ditto.

	Update URLs to use https rather than http
	* (all): Change http:// to https://
	* README.W32: Remove invalid link to mingw.org.

2022-10-18  Paul Smith  <psmith@gnu.org>

	Rework temp file handling to avoid GNU libc warnings
	Original patch provided by Paul Eggert <eggert@cs.ucla.edu>.
	GNU libc will generate a link-time warning if we use mktemp() even
	though we are using it safely (we only use it with mkfifo()).
	Avoid this and clean up some handling.

	First, check all calls related to temporary files and exit with a
	fatal error and a useful message if we can't obtain them.  In some
	situations it might be possible to continue with reduced capability
	but it's not worth the effort.

	On POSIX systems we can create anonymous temp files using O_TMPFILE
	if it's supported, else if we're using the default location and we
	have dup(2), we can use standard tmpfile() and get an FD from it.

	If we need a named temp file and FILE* and we have mkstemp() we can
	use that, else if we have fdopen() we can get a temp FD and open it.
	If none of those are available all we can do is generate a temp name
	then open it with fopen() which is not secure.

	* src/makeint.h (get_tmpdir): Declare it for use elsewhere.
	* src/misc.c (get_tmpdir): Make it public not static.
	(get_tmptemplate): Simplify the implementation.
	(get_tmppath): Only define this if we have to have it to avoid
	warnings from GNU libc.
	(get_tmpfd): Generate fatal errors on error.
	(get_tmpfile): Ditto.  Open files in "wb+" mode to match tmpfile().
	Require a filename pointer (all callers want it).
	* src/os.h (os_anontmp): Implement for posixos.c as well.
	* src/posix.c (jobserver_setup): Don't use mktemp to avoid GNU libc
	errors.  Instead construct the FIFO name based on the PID.
	(osync_setup): get_tmpfd() can't fail so don't check it.
	(os_anontmp): If the system supports O_TMPFILE use it.  If not, and
	we want to create the temporary file in the default directory, we
	can use tmpfile() then use dup() to copy the file descriptor.
	* src/main.c (main): get_tmpfile() can't fail.
	* src/vmsjobs.c (child_execute_job): get_tmpfile() can't fail.

2022-10-18  Paul Smith  <psmith@gnu.org>

	Add ISDIRSEP() helper macro and use it
	Create a ISDIRSEP() macro to check for directory separator chars
	using the stopchar_map, and replace inline checks and explicit
	STOP_SET calls with this macro.

	* src/makeint.h (ISDIRSEP): Create the macro using MAP_DIRSEP.
	* src/dir.c (find_directory): Replace inline checks with ISDIRSEP.
	(file_exists_p): Ditto.
	(file_impossible): Ditto.
	(file_impossible_p): Ditto.
	(local_stat): Ditto.
	* src/file.c (lookup_file): Ditto.
	* src/function.c (abspath): Ditto.
	* src/job.c (_is_unixy_shell): Ditto.
	(is_bourne_compatible_shell): Ditto.
	(construct_command_argv): Ditto.
	* src/main.c (find_and_set_default_shell): Ditto.
	(main): Ditto.
	* src/read.c (eval): Ditto.
	(parse_file_seq): Ditto.
	* src/remake.c (name_mtime): Ditto.
	* src/vpath.c (construct_vpath_list): Ditto.

2022-10-18  Paul Smith  <psmith@gnu.org>

	Add preprocessor macros for different platforms
	* configure.ac: MK_CONFIGURE shows config.h was generated by configure.
	* src/config.ami: Define MK_AMIGAOS.
	* src/config.h-vms: Define MK_VMS.
	* src/configh.dos: Define MK_DJGPP.
	* src/config.h.W32: Define MK_W32 and WINDOWS32.
	* src/build_w32.bat: Let WINDOWS32 be defined by config.h.  Remove
	unused setting of WIN32.
	* src/job.c: Clean up use of WIN32.
	* src/main.c: Ditto.
	* tests/scripts/features/default_names: Ditto.

2022-10-18  Paul Smith  <psmith@gnu.org>

	Check for recipe line count overflow before it overflows
	awk 'BEGIN {
	       print "x:"
	       for (i = 0; i < 65536; i++)
	         printf "\techo %d\n", i}
	    ' | make -f -

	Outputs only "make: 'x' is up to date."  Larger values run only the
	lines above 65536.  Reported by Paul Eggert <eggert@cs.ucla.edu>.

	* src/commands.c (chop_commands): Check the line count before it has
	a chance to overflow.  Use size_t for max count so it can't overflow.
	Remove stray 'd' in diagnostic.

2022-10-18  Paul Smith  <psmith@gnu.org>

	Remove template files to simplify distribution creation
	The README templates were not useful since the replacement step
	didn't have anything to replace: rename them.

	Rather than creating template files for the config variants, create
	mkconfig.h.in containg PACKAGE_* variables to be replaced, and have
	config variant header files include it.  Note on POSIX we don't use
	this, and continue to generate a single config.h.in file.

	Use config.status to convert the README.in and mkconfig.h.in files
	during distribution creation.

	Modify all users of VERSION to use PACKAGE_VERSION instead.

	* configure.ac: Use GNU Make not GNU make as the package name.
	* README.in: Use GNU Make not GNU make.
	* README.git: Remove references to README.W32.template.
	* .gitignore: Update for new behavior.
	* Basic.mk.template: Remove unused posix_SOURCES and VERSION, and
	references to unshipped mk/Posix.mk
	* Makefile.am: Add src/mkconfig.h as an extra dist file.
	* bootstrap.bat: Rewrite mkconfig.h.in to mkconfig.h
	* maintMakefile: Remove obsolete template files; add mkconfig.h.in.
	* prepare_vms.com: Rewrite mkconfig.h.in to mkconfig.h
	* mk/VMS.mk: Fix incorrect header file prerequisite.
	* src/mkconfig.h.in: New file containing PACKAGE variables.
	* src/config.ami: Include mkconfig.h.
	* src/config.h.W32: Ditto.
	* src/configh.dos: Ditto.
	* src/config.h-vms: Ditto.
	* src/version.c: Use PACKAGE_VERSION not VERSION.

2022-10-16  Juan M. Guerrero  <juan.guerrero@gmx.de>

	Support building with DJGPP 2.05
	* builddos.bat: Use env var settings for paths.  Fix a typo in
	expand.o.  Add the missing load.o compilation and link.  Enable
	Guile support.  Copy Basic.mk from the correct location.
	* src/configh.dos.templage: DJGPP supports strtoll() and ssize_t
	given new enough versions.  Set preprocessor variables to 1 not 0.

2022-10-16  Paul Smith  <psmith@gnu.org>

	* src/job.c: [SV 63185] Include sys/loadavg.h if needed.

2022-10-16  Paul Smith  <psmith@gnu.org>

	[SV 63215] Remember the random seed for shuffle mode
	Basic fix provided by James Hilliard <james.hilliard1@gmail.com>.
	Ensure we remember and propagate the random seed we generate during
	shuffle mode.  Also add a debug statement displaying the seed.

	* src/shuffle.c (shuffle_set_mode): Init and save the randoms seed.
	* src/misc.c (make_rand): Code cleanups.
	* src/main.c (main): Show a debug message containing the seed.

2022-10-15  Paul Smith  <psmith@gnu.org>

	Use (void) rather than () in function declarations
	In C, a function declaration with () allows any set of arguments.
	Use (void) to mean "no arguments".

	* src/dep.h: Switch () to (void) for functions with no arguments.
	* src/makeint.h: Ditto.
	* src/os.h: Ditto.
	* src/shuffle.h: Ditto.
	* src/variable.h: Ditto.

2022-10-15  Paul Smith  <psmith@gnu.org>

	[SV 63157] Ensure temporary files are removed when signaled
	Original patch from Dmitry Goncharov <dgoncharov@users.sf.net>.
	When handling a fatal signal ensure the temporary files for
	stdin and the jobserver fifo (if in use) are deleted.

	* src/makeint.h (temp_stdin_unlink): Declare a new method.
	* src/main.c (temp_stdin_unlink): Delete the stdin temporary file
	if it exists.  If the unlink fails and we're not handling a signal
	then show an error.
	(main): Call temp_stdin_unlink() instead of unlinking by hand.
	* src/commands.c (fatal_error_signal): Invoke cleanup methods if
	we're handling a fatal signal.
	* tests/scripts/features/output-sync: Test signal handling during
	output sync and jobserver with FIFO.
	* tests/scripts/features/temp_stdin: Test signal handling when
	makefiles are read from stdin.

2022-10-15  Paul Smith  <psmith@gnu.org>

	* src/posixos.c (job_root): Remember root jobserver instances
	(jobserver_setup): Set job_root to true.
	(jobserver_clear): if we're the root instance and we're using a
	FIFO, unlink it.  If we're not in a signal handler, free memory.
	(jobserver_acquire_all): Call jobserver_clear().
	(sync_root): Rename from sync_parent for consistency.

	Set the proper type for variables set in signal handlers
	* bootstrap.conf: Get gnulib's sig_atomic_t type checking M4 macro.
	* configure.ac: Invoke it.
	* src/makeint.h (handling_fatal_signal): Set the type correctly.
	* src/commands.c (handling_fatal_signal): Ditto.

2022-10-08  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* tests/test_driver.pl (toplevel): [SV 63156] Keep temp env vars

2022-10-03  Paul Smith  <psmith@gnu.org>

	Clean up some warnings on Windows builds
	* src/arscan.c (parse_int): Avoid conversion from int to char and
	check for overflow given a max value.
	(ar_scan): Check intmax sizes then cast to the proper type.
	(ar_member_touch): Get proper return type from ar_scan and cast it
	to off_t.
	* src/function.c (a_word_hash_cmp): Don't cast from size_t to int.
	(func_filter_filterout): Count using unsigned long to avoid casts.
	(construct_include_path): Explicitly cast to void*.
	* src/shuffle.c (reverse_shuffle_array): Use size_t index.
	* src/w32/subproc/sub_proc.c (process_wait_for_multiple_objects):
	Initialize the return value in case the count is 0.

	* src/misc.c (make_lltoa): Use printf format macro from makeint.h
	(make_ulltoa): Ditto.

	* src/arscan.c (ar_scan): Avoid sign comparison warnings
	Pacify 12.2.1 20220819 (Red Hat 12.2.1-2) -Wsign-compare by checking
	the readbuf() return explicitly for errors then casting from ssize_t.
	Initial patch provided by Paul Eggert <eggert@cs.ucla.edu>.

2022-10-03  Paul Eggert  <eggert@cs.ucla.edu>

	Support systems with 32-bit long and 64-bit time_t
	Don't assume that time_t fits in long, as some hosts (e.g.,
	glibc x86 -D_TIME_BITS=64) have 32-bit long and 64-bit time_t.

	* bootstrap.conf (gnulib_modules): Add largefile, to support files
	with timestamps after Y2038 on hosts with 32-bit long.
	* configure.ac: Do not call AC_SYS_LARGEFILE, as the largefile module
	does that for us.
	* src/makeint.h (PRIdMAX, PRIuMAX, SCNdMAX): Define if not already
	defined (taken from gnulib).
	* src/ar.c: Include intprops.h, for TYPE_MAXIMUM, as
	INTEGER_TYPE_MAXIMUM does not work on time_t without issuing a bunch
	of warnings.
	(ar_member_date): Check that result is in time_t range.
	(ar_member_date_1): Use intmax_t to hold the date.
	(ar_glob_match): Ditto.
	* src/arscan.c (VMS_function, VMS_function_ret, ar_scan)
	(parse_int, ar_scan, ar_member_pos, ar_member_touch)
	(describe_member): Convert long int to intmax_t.
	* src/file.c (file_timestamp_sprintf): Use intmax_t/uintmax_t instead
	of long/unsigned long for values that might be time_t.
	* src/arscan.c (ar_member_touch): Fix buffer overrun if the timestamp
	is too large.

2022-10-03  Paul Smith  <psmith@gnu.org>

	Add support for intmax_t
	* configure.ac: Ask autoconf to detect it.
	* src/config.ami.template: Add #define intmax_t for AmigaOS.
	* src/config.h-vms.template: Add #define intmax_t for VMS.
	* src/config.h.W32.template: Add #define intmax_t for Windows.
	* src/configh.dos.template: Add #define intmax_t for MS-DOS/DJPP.

	* NEWS: Deprecate Xenix

2022-10-02  Paul Smith  <psmith@gnu.org>

	[SV 63098] Temporarily revert the change to pattern rule behavior
	The fix for SV 12078 caused a backward-compatibility issue with some
	makefiles.  In order to allow users to resolve this issue, revert
	that change for this release cycle: it will be reinstated in the
	next release cycle.  Introduce a warning if we detect that the recipe
	of a multi-target pattern rule doesn't create all the targets.

	* NEWS: Announce the future backward-incompatibility.
	* doc/make.texi (Pattern Intro): Describe the behavior and that it
	will change in the future.
	* src/remake.c (check_also_make): Check for also_make targets that
	were not created and generate a warning.
	(update_goal_chain): Call the new function.
	(check_dep): Ditto.
	(update_file_1): Defer implicit rule detection until after we check
	all the also_make files (as it used to be).
	* tests/scripts/features/patternrules: Add tests of the new warning.
	Skip the tests for SV 12078.

2022-10-02  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Prerequisite Types): [SV 58056] Clarify ordering.

	* src/filedef.h (is_ordinary_mtime): Check for "ordinary" mod time.
	* src/remake.c (update_file_1): Use the new macro.

	* src/remake.c (update_file_1): Return valid enum element, not 0.

	* NEWS: Announce deprecation of OS/2 and AmigaOS ports

	* src/main.c (main): Add debug output for jobserver and osync.
	* src/posixos.c (jobserver_setup): Remove redundant debug output.
	(jobserver_parse_auth): Ditto.

2022-10-02  Andreas Schwab  <schwab@suse.de>  (tiny change)

	[SV 63111] Ensure output-sync is cleaned on re-exec and recursion
	Now that output-sync is using a separate file as a mutex rather than
	stdout, ensure the new file descriptor is closed before re-exec and
	not inherited by children.

	* src/main.c (main): Call osync_clear() before re-exec.
	* src/posixos.c (osync_setup): Reset output-sync handle inheritance.
	(osync_parse_mutex): Ditto.

2022-10-01  Paul Smith  <psmith@gnu.org>

	* src/function.c: Change int to uint to align with gmk_func_ptr

2022-10-01  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* doc/make.texi (Loaded Object API): [SV 63126] Fix typos and examples

2022-10-01  Paul Smith  <psmith@gnu.org>

	Implement a simple xorshift 32bit random number generator
	Avoid relying on the system random number generator for our random
	shuffle, so that the same seed gives the same results on all systems.
	This generator doesn't need to be amazing, just pretty good, so don't
	bother with xorshift* or xorshift+, etc.

	* src/makeint.h: Declare make_seed() and make_rand().
	* src/misc.c (make_seed): Set the seed value for the RNG.
	(make_rand): Return the next random number.  If the seed was not set
	initialize it first.
	* src/shuffle.c (shuffle_set_mode): If we don't get a seed from the
	user just leave it unset (0).
	(shuffle_deps_recursive): Use make_seed() not srand().
	(random_shuffle_array): Use make_rand() not rand().

2022-09-25  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63100] Set the floc of every created goal dep struct
	* src/read.c (eval): Initialize the goaldep floc pointer.
	* tests/scripts/features/loadapi: Verify that the floc is set after
	unloading and reloading dynamic objects.

2022-09-25  Paul Smith  <psmith@gnu.org>

	* doc/make.texi: Update out of date behavior for grouped targets.

	* README.git: Announce releases to the platform-testers list

2022-09-25  Paul Smith  <psmith@gnu.org>

	Provide new functions to convert long long to string
	The previous attempt to use PRI* macros to avoid compiler-specific
	printf format specifiers didn't work because we are using raw
	long long type, not the uintX_t types.  On systems where long and
	long long are the same size, uint64_t might be type "long" and PRId64
	is just "ld".

	Instead write new functions that convert [unsigned] long long to a
	string and call those instead.

	* src/makeint.h: Declare make_lltoa() and make_ulltoa().
	* src/misc.c (make_lltoa): New function that writes a long long value
	into a provided buffer.  Return the buffer for ease-of-use.
	(make_ulltoa): Ditto, for unsigned long long.
	* src/function.c (func_wordlist): Call these new methods.  Also
	rework the error strings so we share the translated string.
	* src/dir.c (print_dir_data_base): Call the new methods instead of
	using MSVC macros.

2022-09-25  Paul Smith  <psmith@gnu.org>

	Always restore global environ if we use vfork
	We may change the global environ variable in the child; when using
	vfork() this also sets it in the parent.  Preserve the parent's
	environ in child_execute_job() so it takes effect for all callers.

	Reported by Denis Excoffier <bug-tar@Denis-Excoffier.org>
	Root cause found by Martin Dorey <Martin.Dorey@hitachivantara.com>

	* src/job.c (start_job_command): Remove save/restore of the parent
	environment.
	(child_execute_job): Add save/restore of the parent environment,
	if we use vfork().
	* tests/scripts/functions/shell: Add a test the crashes if we don't
	reset environ after we run $(shell ...).

2022-09-25  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* configure.ac: [SV 63070] Clean up the test program for posix_spawn.

2022-09-25  Paul Smith  <psmith@gnu.org>

	* src/posixos.c (osync_clear): Don't close invalid FDs.

	* maintMakefile: Use gnulib ncftpput-ftp if ncftpput is missing.

	* src/misc.c (strncasecmp): Use size_t for length to match std.
	* src/misc.h (strncasecmp): Fix the declaration.

	* configure.ac: Update to GNU make 4.3.91
	* NEWS: Update the version and clarify some backward-compat issues.

2022-09-25  Eli Zaretskii  <eliz@gnu.org>

	Fix compiler warnings in the MS-Windows build.
	* src/w32/w32os.c (osync_get_mutex, osync_parse_mutex): Cast to
	DWORD_PTR when converting integers to HANDLEs and vice versa.

	* src/w32/pathstuff.c (w32ify): Pacify compiler warnings about
	'strncpy'.

	* src/makeint.h (PRId64) [!HAVE_INTTYPES_H]: Define if undefined.
	* src/function.c (func_wordlist): Use PRId64 instead of %lld.

2022-09-24  Eli Zaretskii  <eliz@gnu.org>

	Avoid compilation warnings
	* src/implicit.c: (pattern_search):
	* src/main.c: (main): Avoid compilation warnings for variables
	only used when compiling a debug version with assertions.

2022-09-20  Paul Smith  <psmith@gnu.org>

	Release GNU make 4.3.90
	* NEWS: Update for the prerelease.
	* bootstrap.conf: Choose the latest stable gnulib.
	* README.git: Updates.

	* tests/script/parallelism: Force wait to remove races.

2022-09-20  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 56301] Fail if an included makefile can't be built
	Fail if a mandatory include file fails to be built even if it's
	built as part of a grouped target where the other include file
	is optional.

	* src/main.c (main): If a makefile doesn't build set any_failed.
	* tests/scripts/features/include: Add tests.
	* tests/scripts/options/dash-k: Stop after include build failure.

2022-09-20  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/statipattrules: [SV 17374] Add test
	Verify that double-colon static pattern rules work.

2022-09-20  Paul Smith  <psmith@gnu.org>

	[SV 12078, SV 62809] Rebuild grouped targets if any is missing
	If any of a set of grouped targets is missing or out of date, even
	if make is not trying to build that target, rebuild them all.
	Ensure this is true for explicit grouped targets as well as pattern
	rule grouped targets.

	Original patch by Jonathan Gravel <jo@stashed.dev>

	* src/remake.c (update_file_1): After matching any pattern rules,
	go through the also_make targets and set noexist as needed.  Also
	compute the oldest this_mtime.
	* tests/scripts/features/grouped_targets: Add regression tests.
	* tests/scripts/features/patternrules: Ditto.
	* tests/features/vpath: Rewrite to use modern run_make_test().
	Add a test that we check for VPATH before implicit rule search.
	Move the tests in vpath2 and vpath3 into this suite.
	* tests/features/vpathplus: Rewrite to use modern run_make_test().

2022-09-17  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* tests/scripts/targets/WAIT: [SV 63071] Remove possible test races.

2022-09-13  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Parallel Disable): Add clarifications.
	* NEWS: Suggest how to change makefiles that use $(MAKEFLAGS).

2022-09-12  Paul Smith  <psmith@gnu.org>

	[SV 13862] Implement the .WAIT special target
	The next version of the POSIX standard defines parallel execution
	and requires the .WAIT special target as is implemented in some other
	versions of make.

	This implementation behaves similarly to others in that it does not
	create a relationship between targets in the dependency graph, so
	that the same two targets may be run in parallel if they appear as
	prerequisites elsewhere without .WAIT between them.

	Now that we support .WAIT it's trivial to also support prerequisites
	of the .NOTPARALLEL special target, which forces the prerequisites of
	those targets to be run serially (as if .WAIT was specified between
	each one).

	* NEWS: Announce the new .WAIT and .NOTPARALLEL support.
	* doc/make.texi (Parallel Disable): A new section to discuss ways in
	which parallel execution can be controlled.  Modify cross-refs to
	refer to this section.
	* src/dep.h (struct dep): Add a new wait_here boolean.
	(parse_file_seq): Add PARSEFS_WAIT to check for .WAIT dependencies.
	* src/file.c (split_prereqs): Use PARSEFS_WAIT.
	(snap_deps): If .NOTPARALLEL has prerequisites, set .WAIT between
	each of _their_ prerequisites.
	(print_prereqs): Add back in .WAIT when printing prerequisites.
	* src/implicit.c (struct patdeps): Preserve wait_here.
	(pattern_search): Ditto.  Use PARSEFS_WAIT when parsing prereqs for
	pattern rule expansion.
	* src/read.c (check_specials): Don't give up early: remembering to
	update these options is not worth the rare speedup.
	(check_special_file): If .WAIT is given as a target show an error--
	once--if it has prereqs or commands.
	(record_files): Call check_special_file on each target.
	(parse_file_seq): If PARSEFS_WAIT is given, look for .WAIT prereqs.
	If we see one assume that we are building a struct dep chain and set
	the wait_here option while not putting it into the list.
	* src/remake.c (update_file_1): If wait_here is set and we are still
	running, then stop trying to build this target's prerequisites.
	* src/rule.c (get_rule_defn): Add .WAIT to the prerequisite list.
	* src/shuffle.c (shuffle_deps): Don't shuffle the prerequisite list
	if .WAIT appears anywhere in it.
	* tests/scripts/targets/WAIT: Add a test suite for this feature.

2022-09-12  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63045] Reload each intact unloaded shared object
	If makefile rules do not update an unloaded shared object, load it
	again.  Avoid double loading of the same object if the setup function
	returns -1.

	* src/filedef.h (struct file): Add "unloaded" flag.
	* src/makeint.h (load_file): Take struct file *.
	(unload_file): Return int.
	* src/main.c (main): Reload unloaded shared objects if they weren't
	updated.
	* src/commands.c (execute_file_commands): Set "unloaded" and reset
	"loaded" when a shared object is unloaded.
	* src/read.c (eval): Set "loaded" and reset "unloaded" when a shared
	object is loaded.  Add successfully loaded files to the db.
	* src/load.c (load_file): Check "loaded" to avoid double loading the
	same object.  Fix a memory leak of string loaded.  Return -1, rather
	than 1, if the object is already loaded. This fixes double loading of
	the same object when the setup routine returns -1.
	(load_object): Add a log message.
	(unload_file): Return an error on dlclose failure.  Log a message.
	* tests/scripts/features/loadapi: Add new tests.

2022-09-12  Sergei Trofimovich  <siarheit@google.com>

	[SV 63047] Fix shuffle of SECONDEXPANSION prerequisites
	Commit 07eea3aa4 `make --shuffle` prevented shuffling prerequisites
	that use .SECONDEXPANSION, since shuffle happens before expansion.
	This has two problems:
	1. No shuffling happens for such prerequisites.
	2. Use-after-free when outdated '->shuf' links are used.

	Add a reshuffle into expansion phase right after dependency changes.

	* src/file.c (expand_deps): Add reshuffle if dependencies change.
	* src/shuffle.c (identity_shuffle_array): Fix comment typo.
	* tests/scripts/options/shuffle: Add new SECONDEXPANSION test.

2022-09-11  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (How Make Works): Clarify default goal exceptions.

	* src/shuffle.c: Minor coding changes.

2022-09-11  Paul Smith  <psmith@gnu.org>

	Support the MAKE_TMPDIR environment variable
	Allow build systems to choose an alternative location for make to
	store its temporary files.

	* NEWS: Announce the new environment variable.
	* doc/make.texi (Temporary Files): Provide documentation.
	* src/misc.c (get_tmpdir): Split into a new function.  Compute the
	temporary directory and store it in a static location.
	* tests/scripts/features/jobserver: Add a test of MAKE_TMPDIR.

2022-09-10  Paul Smith  <psmith@gnu.org>

	[SV 62898] Document ways to hide special chars from make functions
	* doc/make.texi (Function Call Syntax): Add a subsubheading describing
	which special characters may need to be hidden from make functions.

2022-09-10  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 63044] load: Update .LOADED if the setup function returns -1
	* src/load.c (load_file): Update .LOADED if setup returns non-0.
	* tests/scripts/features/load: Change the return value based on an
	environment variable.  Ensure that returning -1 still adds to
	.LOADED.  Also add a test that verifies that make doesn't try to
	rebuild the loaded file if -1 is returned.

2022-09-10  Paul Smith  <psmith@gnu.org>

	Enhance the make.texi formatting
	Notes provided by Tzvetelin Katchov <katchov@gnu.org>.

	* doc/make.texi: Remove obsolete @refill statements.  Add some breaks
	to overfull lines.  Fix up some example text.

2022-09-10  Paul Smith  <psmith@gnu.org>

	Clean up maintMakefile
	Notes provided by Tzvetelin Katchov <katchov@gnu.org>

	* maintMakefile (git-very-clean): Add -x to git clean.
	(GNULIBDIR): Use GNULIB_SRCDIR, or the local module if not set.

2022-09-10  Paul Smith  <psmith@gnu.org>

	[SV 63037] Fix tests for newer OS / compiler
	* tests/scripts/features/load: Add function prototypes.
	* tests/scripts/features/temp_stdin: Only set user execute bits.
	Some configurations don't allow changing the group bits...??

2022-09-10  Paul Smith  <psmith@gnu.org>

	[SV 63040] shell: Fall back to the callers environment
	If we detect a recursive variable reference when constructing the
	environment for the shell function, return the original value from the
	caller's environment.  Other options such as failing, returning the
	empty string, or returning the unexpanded make variable value have
	been shown to not behave well in real-world environments.  If the
	variable doesn't exist in the caller's environment, return the empty
	string.

	Found by Sergei Trofimovich <slyich@gmail.com> when testing older
	versions of autoconf.

	* NEWS: Clarify this behavior.
	* doc/make.texi (Shell Function): Ditto.  Also add info about !=.
	* src/expand.c (recursively_expand_for_file): Search the caller's
	environment if we detect a recursive variable expansion.
	* tests/scripts/functions/shell: Add tests for this behavior.

2022-09-08  Paul Smith  <psmith@gnu.org>

	[SV 63016] Don't fail exporting to $(shell ...)
	The fix for SV 10593 caused recursive expansion errors when exporting
	a variable that contains a $(shell ...) invocation.  If we see this
	type of recursion, ignore it and expand to the empty string rather
	than failing.

	* src/variable.h (env_recursion): New global variable.
	* src/variable.c (target_environment): If creating the environment
	for a $(shell ...) function increment env_recursion.  Remove the
	check for expansion in a shell function context.
	* src/expand.c (recursively_expand_for_file): Check for recursive
	expansion in a $(shell ...) environment context and if present,
	show the verbose message and return the empty string.
	* tests/scripts/functions/shell: Add a test for this situation.

2022-09-08  Paul Smith  <psmith@gnu.org>

	Ensure debug output ends in newline
	* src/load.c (load_object): Debug output strings must include \n.
	* src/variable.c (target_environment): Ditto.
	* src/posixos.c: Remove extra newlines.

2022-09-08  Paul Smith  <psmith@gnu.org>

	Sanitize tar file ownership, mode, and order
	For reproducibility ensure all files in the dist tar file are owned by
	root, and sorted by name.  Force the mode on all files to be writable
	by the owner and not writable by group or user, by default.

	Remove unnecessary execute permissions from build_w32.bat.

	Recommended by Tzvetelin Katchov <katchov@gnu.org>.

2022-09-08  Paul Smith  <psmith@gnu.org>

	bootstrap: Update to the latest gnulib bootstrap model
	* README.git: Document the changes.
	* bootstrap.conf: Set GNULIB_REVISION to avoid random updates.
	* configure.ac: Set the minimum autoconf version back to 2.69:
	that's the most common version deployed today, and it still works.
	* bootstrap: Copy the latest from gnulib.
	* autogen.sh: Ditto.
	* autopull.sh: Ditto.
	* bootstrap-funclib.sh: Ditto.

2022-08-30  Paul Smith  <psmith@gnu.org>

	Fix tests for MacOS and Windows
	* maintMakefile: Remove the template headers as prerequisites.
	* tests/scripts/features/jobserver: Only test fifo if enabled.
	* tests/scripts/variables/INCLUDE_DIRS: On MacOS none of the default
	directories exist so .INCLUDE_DIRS is empty by default.
	* tests/scripts/features/se_explicit: Fail via exit.  cp will show
	different error messages on different systems.
	* tests/scripts/features/se_implicit: Ditto.
	* tests/scripts/features/se_statpat: Ditto.

2022-08-30  Paul Smith  <psmith@gnu.org>

	[SV 62840] Don't change IO buffering before printing version
	If users run 'make --version | head -n1' they expect make to exit
	with a success (0) code.  This works because the pipe forces the
	default buffering on stdout to be fully buffered so all the output
	is printed to the pipe in a single write(2) and won't fail.  However
	due to output sync we forcibly set stdout to line buffered, which
	means if the reader closes the pipe fast enough make will exit with
	an error code because the write to stdout failed.

	Move the setup done in output_init() back into main() where it can
	be done in a proper order.  Rework the order of operations during
	startup so that we check for help and version flags before we change
	the buffering.  Clean up the behavior of print_usage().

	Original changes from Dmitry Goncharov <dgoncharov@users.sf.net>.

	* src/main.c (switches): Don't send --version in the environment.
	(print_usage): Add a blank line after the version before the usage.
	Move the die() into this function since we always die() afterward.
	Note the die will flush so no need to do it explicitly.
	(print_version): The caller will fflush when appropriate.
	(close_stdout): Move from output.c so it is installed early.
	(decode_switches): Only call print_usage on error, not for --help.
	(main): Install the close_stdout handler immediately after start.
	Move the calls to print_usage() due to --help and --version to be
	called immediately after we decode the switches.  Move the buffer set
	here from output_init(), immediately after we know we'll be running.
	* src/output.c (output_init): Move buffer setting to main().
	(close_stdout): Move to main().

2022-08-30  Paul Smith  <psmith@gnu.org>

	Rework output sync to lock a temp file on POSIX
	Some POSIX systems do not allow locks to be taken on non-files, such
	as pipes.  This is a problem since very often make is invoked with
	its stdout redirected to a pipe.  Also, if stdout is redirected to a
	file that already has a lock on it for some other reason (perhaps a
	shared file such as /dev/null) it can cause a hang.

	This means our previous method of locking stdout, although it had some
	nice advantages, is not portable enough.  Instead, use a temporary
	file and take the lock on that.  We pass the name of the file to child
	make processes.  On Windows we continue to use a shared mutex for
	output sync.

	Remove POSIX emulation functions like fcntl from Windows; instead
	follow the lead of the jobserver and create an interface in os.h for
	output sync, and move the OS-specific content to posixos.c and
	w32os.c.

	* NEWS: Add a note.
	* src/makeint.h (ALL_SET): Check that all bits are set.
	* src/os.h: Add bits for checking the state of stdin/stdout/stderr.
	Add prototypes for OS-specific output sync methods.
	* src/posixos.c (check_io_state): Determine the status of stdin,
	stdout, stderr an return a suite of bits describing them.
	(osync_enabled): If the global variable holding the FD of the lock
	file (osync_handle) is valid return true.
	(osync_setup): Create a temporary file and remember its name in a
	global variable (osync_tmpfile), and set osync_handle.
	(osync_get_mutex): If output sync is enabled, return the filename
	of the lock file prefixed with "fnm:" to denote a filename.
	(osync_parse_mutex): If the provided filename has the wrong format
	disable output sync.  Else open the lock file and set osync_handle.
	(osync_clear): Close osync_handle.  If we're the parent make, then
	also unlink the temporary file.
	(osync_acquire): Take a lock on the osync_handle descriptor.
	(osync_release): Release the lock on the osync_handle descriptor.
	(fd_set_append): Add APPEND mode to a file descriptor.
	* src/w32/w32os.c: Perform the same actions as posixos.c, copying
	the details from src/w32/compat/posixfcn.c.  Use a mutex rather
	than locking a temporary file.
	* src/output.h: Remove all the OS-specific content.
	* src/output.c: Remove all the OS-specific content.
	(set_append_mode): Remove and replace with fd_set_append().
	(sync_init): Remove and replace with check_io_state().
	(acquire_semaphore): Remove and replace with osync_acquire().
	(release_semaphore): Remove and replace with osync_release().
	(setup_tmpfile): If the IO state is not obtained, get it.  If stdout
	and/or stderr are valid, set up a tempfile to capture them.
	(output_init): Set io_state if not set already, and check it when
	deciding whether to close stdout on exit.
	* src/main.c (main): If we're syncing, set up the mutex using the
	new osync_setup() / osync_parse_mutex() methods.
	(prepare_mutex_handl_string): Replace with osync_parse_mutex().
	(die): Call osync_clear().
	* src/w32/compat/posixfcn.c: Remove implementations of fcntl(),
	record_sync_mutex(), create_mutex(), and same_stream().

2022-08-30  Paul Smith  <psmith@gnu.org>

	Add get_tmpfd() and allow anonymous temp files
	The output sync feature wants a file descriptor not a FILE*.  We were
	using tmpfile() but this returns FILE* which means we needed to dup()
	the descriptor then fclose() the original, which is just unnecessary
	overhead for every command we run.

	Create a get_tmpfd() method that returns a file descriptor directly
	by using mkstemp() if available, else do the best we can.

	Also allow anonymous temp files if the filename pointer is NULL.
	This causes the file to be unlinked.  On Windows this requires a
	special open so add an os_anontmp() method to handle this.

	* src/makeint.h: Add prototype for get_tmpfd().
	* src/misc.c (get_tmpfd): If we have mkstemp() use that, else just
	open(2).  If we don't want to keep the filename, unlink the file.
	(get_tmpfile): Use get_tmpfd() if we have fdopen(), else use fopen().
	* src/output.c (output_tmpfd): Call get_tmpfd() with NULL.
	* src/os.h (os_anontmp): On Windows make this a function, else fails.
	* src/w32/compat/posixcfn.c (tmpfile): Move to w32os.c:os_anontmp().
	* src/w32/w32os.c (os_anontmp): Create a temp file that will be deleted
	when the process exits, and return a file descriptor to it.

2022-08-29  Paul Smith  <psmith@gnu.org>

	test_driver: check for leftover temp files after each test
	Reset the temp directory for every test to a local directory, then
	after each test see if any new temp files were created and not
	deleted: if they were then fail the test.  Rather than delete the
	temp files we leave them there and avoid reporting files that were
	seen before, so the user can investigate them.

	Rewrite the temp_stdin tests to rely on this built-in behavior
	rather than implementing the checks directly.

	* tests/test_driver.pl: Create a $TEMPDIR variable pointing to a
	temporary directory outside the test temp directory.
	(toplevel) Before starting any tests create a temp directory and set
	the POSIX and Windows temp directory environment variables to use it.
	(compare_output) Check the contents of the temp directory.  If any
	new files have appeared, fail the test.
	* tests/scripts/features/temp_stdin: Remove check_tempfile() and
	all users of it, plus setting of temp environment variables.

2022-08-22  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62908] Don't free fifo_name twice during error handling
	* src/posixos.c (jobserver_setup): Set fifo_name to NULL after free.
	* tests/scripts/features/jobserver: Add tests.

2022-08-22  Paul Smith  <psmith@gnu.org>

	Fix bootstrap.bat for bootstrapping on Windows
	* README.git: Clarify that these methods are lightly tested.
	* build_w32.bat: Don't support any config step: fail if not completed.
	Move the config steps into bootstrap.bat.  Don't print compile lines
	by default and add a --verbose option to show them.
	* bootstrap.bat: Ensure we have curl and sed before we do anything.
	Pull the latest necessary files from gnulib.  Create a convert.sed
	script that can update the various template files, and update
	Basic.mk, config.h.W32, and gmk-default.h.
	* tests/run_make_tests.pl: Remove CRLF rather than using chop.  If we
	run perl in Git for Bash it seems to handle newlines differently.
	* tests/scripts/features/temp_stdin: Remove the make copy and close
	STDIN so we can delete the temp file on Windows.
	* .gitignore: Ignore the convert.sed script.

2022-08-14  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Variables/Recursion): [SV 56446] Clarify export docs

2022-08-07  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Goals): [SV 51306] Improve MAKECMDGOALS example

2022-08-07  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* doc/make.texi (Remaking Makefiles): [SV 61623] Add optimization

2022-08-03  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Chained Rules): [SV 61957] Clarify NOTINTERMEDIATE

	[SV 62496] Fix example of testing MAKEFLAGS
	* doc/make.texi (Options/Recursion): Define the layout of MAKEFLAGS.
	(Testing Flags): Fix the example to test the first word.

2022-08-02  Paul Smith  <psmith@gnu.org>

	Support implementing the jobserver using named pipes
	Using anonymous pipes for jobserver support has some advantages:
	for example there is nothing on disk that needs to be cleaned up.
	However it has many obscure problems, related to the fact that in
	order for it to work we need to ensure these resources are properly
	passed through to child processes that want to use the jobserver.
	At the same time we don't want to pass the pipe to process which
	DON'T know about the jobserver.

	Other processes can open file descriptors which we then think are
	our jobserver, but aren't.  And, we open the pipe file descriptors
	in blocking mode which doesn't work for all users.

	See issues such as SV 57178, SV 57242, and SV 62397

	To avoid these issues, use named pipes (on systems where they are
	available) instead of anonoymous pipes.  This simplifies many things:
	we never need to pass open file descriptors to our children; they
	can open the jobserver named pipe.  We don't need to worry about
	recursive vs. non-recursive children.  Users don't have to "pass
	through" the resources if they are invoking sub-makes.  Each child
	can open its own file descriptor and set blocking as needed.

	The downside is the named pipe exists on disk and so must be cleaned
	up when the "top-level" make instance exits.

	In order to allow make to continue to be used in build systems where
	older versions of GNU make, or other tools that want to use the
	jobserver, but don't understand named pipes, introduce a new option
	--jobserver-style that allows the user to choose anonymous pipes.

	* NEWS: Announce the change and the --jobserver-style option.
	* doc/make.1: Add --jobserver-style documentation.
	* doc/make.texi (Special Variables): Add missing items to .FEATURES.
	(Options Summary): Add --jobserver-style.
	(POSIX Jobserver): Named pipes, changes to --jobserver-auth, and the
	--jobserver-style option.
	(Windows Jobserver): Document --jobserver-style for Windows.
	* configure.ac: Check for mkfifo.
	* src/config.h-vms.template: Undefined HAVE_MKFIFO.
	* src/config.h.W32.template: Ditto.
	* src/main.c: Add jobserver-style as a new command line option.
	(main): Add jobserver-fifo to .FEATURES if supported.  Pass the style
	option to jobserver_setup().
	* src/os.h (jobserver_setup): Accept a style string option.
	* src/posixos.c (enum js_type): Enumeration of the jobserver style.
	(js_type): Which style we are currently using.
	(fifo_name): The path to the named pipe (if in use).
	(jobserver_setup): If no style is given, or "fifo" is given, set up a
	named pipe: get a temporary file and use mkfifo() on it, then open it
	for reading and writing.  If something fails fall back to anonymous
	pipes.
	(jobserver_parse_auth): Parse jobserver-auth to determine the style.
	If we are using a named pipe, open it.  If we're using anonymous pipes
	ensure they're valid as before.
	(jobserver_get_invalid_auth): Don't invalidate the jobserver when
	using named pipes.
	(jobserver_clear): Clean up memory used for named pipes.
	(jobserver_acquire_all): Unlink the named pipe when done.
	* src/w32/w32os.c (jobserver_setup): Check the style argument.
	* tests/scripts/features/jobserver: Use --jobserver-style to test
	the anonymous pipe behavior, and also test named pipe/semaphore
	behavior.  Check invalid jobserver-style options.
	* tests/scripts/functions/shell: Use --jobserver-style to test the
	anonymous pipe behavior, and also test named pipe/semaphore
	behavior.

2022-08-02  Paul Smith  <psmith@gnu.org>

	Enhance get_tmpfile() and add get_tmppath()
	Move all the logic on creating temporary files into misc.c, and add
	a new function get_tmppath() that returns the pathname to a temporary
	file without creating or opening it.

	* src/makeint.h: Add a declaration for get_tmppath().  Remove the
	template argument from get_tmpfile(): it will compute its own.
	* src/main.c (main): Remove the logic for computing templates.
	* src/vmsjobs.c (child_execute_job): Ditto.
	* src/misc.c (get_tmptemplate): New function to return an allocated
	template string for use with various mktemp-style functions.
	(get_tmppath): Return an allocated path to a temporary file, but do
	not create it.  Generally this should be avoided due to TOCTOU issues.
	(get_tmpfile): Use get_tmptemplate() to generate a template rather
	than using one passed in.  If we don't have mkstemp() then use
	get_tmppath() to compute the path of a temp file.

2022-07-30  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62706] Only second-expand targets that might be built
	Second-expand only the prerequisites of the targets being built.
	Defer second-expanding the prerequisites of targets until we need
	to decide if they should be built.

	* NEWS: Mention the change in behavior.
	* doc/make.texi (Secondary Expansion): Document the new behavior.
	* src/filedef.h (struct file): Add flag snapped.
	(expand_deps): Declare a function to second expand the
	prerequisites of a target.
	* src/file.c (rehash_file): Merge flag snapped.
	(expand_deps): Remove qualifier static. Check flag snapped.
	(snap_deps): Remove the loop which performed second expansion for all
	targets.
	* src/remake.c (update_file_1): Second expand the prerequisites of
	the considered target.
	* tests/scripts/features/se_explicit: Add tests.
	* tests/scripts/features/se_implicit: Ditto.
	* tests/scripts/features/se_statpat: Ditto.

2022-07-30  Paul Smith  <psmith@gnu.org>

	Disable the jobserver in non-recursive children
	Savannah issues such as SV 57242 and SV 62397 show how passing
	references to closed file descriptors via the --jobserver-auth option
	in MAKEFLAGS can lead to problematic outcomes.

	When computing the child environment for a non-recursive shell, add
	an extra option to MAKEFLAGS to disable the file descriptors for the
	jobserver.

	Unfortunately this doesn't modify the value of the make variable
	MAKEFLAGS, it only modifies the value of the sub-shell environment
	variable MAKEFLAGS.  This can lead to confusion if the user is not
	considering the distinction.

	* src/makeint.h: Publish the jobserver-auth value.  Add a global
	definition of the name of the command line option.
	* src/os.h (jobserver_get_invalid_auth): New function to return a
	string invalidating the jobserver-auth option.
	* src/w32/w32os.c (jobserver_get_invaid_auth): Implement it.  On
	Windows we use a semaphore so there's no need to invalidate.
	* src/posixos.c (jobserver_parse_auth): If we parse the invalid
	auth string, don't set up the jobserver.
	(jobserver_get_invalid_auth): Return an invalid option.
	* src/variable.h (target_environment): Specify if the target
	environment is for a recursive shell or non-recursive shell.
	* src/variable.c (target_environment): Move checking for MAKELEVEL
	into the loop rather than doing it at the end.
	Along with this, check for MAKEFLAGS and MFLAGS, and update them
	based on whether we're invoking a recursive or non-recursive child,
	and also on whether it's necessary to invalidate the jobserver.
	* src/function.c (func_shell_base): Shell functions can never be
	recursive to pass 0 to target_environment().
	* src/job.c (start_job_command): Specify whether the child is
	recursive when calling target_environment().
	* src/main.c: Export jobserver_auth.  sync_mutex doesn't need to
	be exported.  Use the global definition for the option name.
	* tests/scripts/variables/MAKEFLAGS: Add tests for $MAKEFLAGS.

2022-07-30  Paul Smith  <psmith@gnu.org>

	Ensure that MAKEFLAGS is set when invoking $(shell ...)
	* src/main.c (main): Don't reset the jobserver if the number of
	slots has not changed.
	(define_makeflags): Add all normal flags even when ALL is not set.
	* tests/scripts/functions/shell: Test invoking make in $(shell ...).
	* tests/scripts/variables/MAKEFLAGS: Test the value of MAKEFLAGS in
	$(shell ...).

	Take advantage of mempcpy() and stpcpy()
	* src/makeint.h (stpcpy): Add missing declaration.
	* src/amiga.c (MyExecute): Avoid extra strlen using stpcpy.
	* src/function.c (func_shell_base): Ditto.
	(func_error): Use memcpy() not strcpy() when we know the length.
	* src/job.c (construct_command_argv_internal): Use stpcpy().
	* src/main.c (main): Ditto.
	(define_makeflags): Ditto.
	* src/variable.c (print_target_variables): Use memcpy() when we know
	the length.
	* src/commands.c (set_file_variables): Use mempcpy().
	* src/expand.c (variable_buffer_output): Ditto.
	* src/file.c (expand_deps): Ditto.
	* src/function.c (abspath): Ditto.
	(handle_function): Ditto.
	* src/implicit.c (pattern_search): Ditto.
	* src/job.c (construct_command_argv_internal): Use mempcpy() and
	don't add multiple spaces when there are no shell flags.
	* src/main.c (decode_env_switches): Use mempcpy() to simplify.
	(define_makeflags): Ditto.
	* src/variable.c (selective_vpath_search): Ditto.

2022-07-09  Paul Smith  <psmith@gnu.org>

	Convert HAVE_GETLOADAVG to HAVE_DECL_GETLOADAVG
	We want to know if getloadavg() is declared, not if we have it.

	* configure.ac: Add it as a define (why is this not the default?)
	* src/job.c: Conditionalize declaration on HAVE_DECL_GETLOADAVG.
	* config.ami.template: Rename HAVE_GETLOADAVG to HAVE_DECL_GETLOADAVG.
	* config.h-vms.template: Ditto.
	* config.h.W32.template: Ditto.
	Clean up and add new elements from latest config.h.

2022-07-09  Paul Smith  <psmith@gnu.org>

	Merge in the latest gnulib findprog-in module

	Merge in the latest gnulib concat-filename module

	Merge in the latest gnulib getloadavg module

	Initial merge of the gnulib-port branch

2022-07-09  Paul Smith  <psmith@gnu.org>

	Move our local m4 macros to gl/m4
	The gl subdirectory contains our local versions of gnulib module
	implementations, so move m4/acinclude.m4 and m4/dospaths.m4 there.

	* gl/modules/make-macros: Create a new module to handle the macros.
	* bootstrap.conf: Add the new module.
	* configure.ac: Macro invocation is moved to make-macros.
	* m4/.gitignore: Delete unnecessary ignore file: m4 is empty.
	* .gitignore: Add m4/ as an ignored directory.

2022-07-09  Paul Smith  <psmith@gnu.org>

	Move our fnmatch/glob implementation into gl/lib
	The gl subdirectory contains our local versions of gnulib module
	implementations, so move fnmatch* and glob* from lib to gl/lib.

	* gl/modules/make-glob: Add a proper Files: section.
	* lib/.gitignore: Delete unnecessary ignore file: lib is empty.
	* .gitignore: Add lib/ as an ignored directory.

2022-07-09  Paul Smith  <psmith@gnu.org>

	* tests/run_make_tests.pl: Exit 1 if we detect an error.

	* configure.ac: Remove AC_FUNC_SETVBUF_REVERSED.
	This macro is obsolete: no useful system has this problem anymore.
	* src/output.c (output_init): Remove reference to SETVBUF_REVERSED.
	* src/config.ami.template: Remove undef of SETVBUF_REVERSED.
	* src/config.h-vms.template: Ditto.
	* src/config.h.W32.template: Ditto.

	* configure.ac: Check for stpcpy() support.
	* src/misc.c (stpcpy): Define it if not provided.

2022-07-09  Paul Smith  <psmith@gnu.org>

	getloadavg: Remove support for privileged invocation
	This was needed when getloadavg required privileged access; in this
	case GNU make needed to be installed as a setgid program.  But this
	hasn't been supported by gnulib getloadavg() since 2011 and systems
	are no longer using it, so remove it.

	* src/makeint.h (user_access): Remove unnecessary function.
	(make_access): Ditto.
	(child_access): Ditto.
	* src/misc.c: Remove implementations of the *_access() functions.
	* src/main.c (main): Remove unneeded call to user_access().
	* src/job.c (load_too_high): Remove calls to {make,user}_access().
	(exec_command): Remove call to child_access().
	* src/remote-cstms.c: Remove calls to these methods.  I suppose it
	might be possible this is needed and was piggy-backing on the
	privileged setting but since that's been broken for a while I doubt
	this is needed.  If so we can bring back the implementation into
	this source file.
	* src/config.h.W32.template: Remove GETLOADAVG_PRIVILEGED undef.
	* src/config.h-vms.template: Ditto.
	* src/config.ami.template: Ditto.

2022-07-09  Paul Smith  <psmith@gnu.org>

	* maintMakefile: Allow checkcfg rules to succeed.
	We can no longer pass our mondo-warnings options to the builds,
	as these will impact all the code including gnulib code, and this
	won't work.  Also allow the caller to disable either the build.sh
	or makefile invocation, for testing.
	* Makefile.am: Allow the caller to reset the path to the make
	binary to be tested.  Remove c90 test: gnulib doesn't support it.

	* build.sh: Manage libgnu_a-prefixed source files

	bootstrap: Remove strerror()
	* bootstrap.conf: Remove strerror module
	* configure.ac: Add a check for strerror
	* src/misc.c: Add a default strerror() if not found

2022-07-09  Paul Smith  <psmith@gnu.org>

	bootstrap: Remove strtoll()
	This pulls in entirely too much stuff we don't need.  Instead grab
	just the gnulib source file, then include it in src/misc.c.

	* bootstrap.conf: Add just the lib/strtol.c source file.
	* configure.ac: Check for strtoll.
	* src/misc.c: Include strtol.c, with QUAD set, if needed.

2022-07-09  Paul Smith  <psmith@gnu.org>

	bootstrap: Remove gnulib version of mempcpy()
	This pulls in a metric ton of stuff that we otherwise don't need, just
	for a one-liner that we already have a replacement for in src/misc.c.

	* bootstrap.conf: Remove mempcpy
	* configure.ac: Add mempcpy to AC_CHECK_FUNCS

2022-07-09  Paul Smith  <psmith@gnu.org>

	Run autoupdate and clean up autoconf usage
	We can assume that the return type of a signal handler is void.
	We can assume that, if sys/time.h exists, it can be included
	with time.h.

	* bootstrap: Get the latest version
	* configure.ac: Require a newer version of autoconf.
	Remove unnecessary AC_PROG_CC_C99 (already have AC_PROC_CC).
	Remove unnecessary AC_AIX, AC_ISC_POSIX, AC_MINIX.
	Remove unnecessary AC_HEADER_STDC, AC_HEADER_TIME, AC_TYPE_SIGNAL.
	Use strerror to search for the cposix library.
	* src/commands.c (fatal_error_signal): Assume return type is void.
	* src/commands.h: Ditto.
	* src/job.c: Ditto.
	* src/job.h: Ditto.
	* src/main.c: Ditto.
	* src/makeint.h: Ditto.
	Don't bother with TIME_WITH_SYS_TIME.
	* src/remote-cstms.c: Check HAVE_SYS_TIME_H.
	* src/config.ami.template: Remove RETSIGTYPE.
	* src/config.h-vms.template: Ditto.
	* src/config.h.W32.template: Ditto.
	Remove TIME_WITH_SYS_TIME.

2022-07-09  Paul Smith  <psmith@gnu.org>

	[SV 10593] Export variables to $(shell ...) commands
	Export all variables, including exported makefile variables, when
	invoking a shell for the $(shell ...) function.  If we detect a
	recursive variable expansion, silently ignore that variable and do
	not export it.  We do print a debug message.

	* NEWS: Announce the potential backward-incompatibility.
	* doc/make.texi (Shell Function): Document the export behavior.
	* src/main.c (main): Add "shell-export" to .FEATURES.
	* src/job.h: New function to free struct childbase.
	* src/job.c (free_childbase): Implement it; call from free_child.
	* src/function.c (func_shell_base): Use target_environment() to
	obtain the proper environment for the shell function.
	Use free_childbase() to free memory.
	(windows32_openpipe): Don't reset the environment: the caller
	already provided a proper PATH variable in envp.
	* src/variable.c (target_environment): If we detect a recursive
	expansion and we're called from func_shell, ignore the variable.
	(sync_Path_environment): Simplify and reduce memory allocation.
	* tests/scripts/functions/shell: Add tests for this.

2022-07-09  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62650] Show correct warning when combining targets
	* src/file.c (rehash_file): Fix warning message.
	(rehash_file): Fix comment to match the behavior.
	* tests/scripts/features/se_explicit: Fix test.
	* tests/scripts/features/mult_rules: Add a new test.

2022-07-09  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62514] Honor command line interface flags
	Commit f2771aa614 introduced a bug where some switches were left out
	of MAKEFLAGS.  Instead of resetting switches, get the same results by
	filtering out duplicates.

	* src/makeint.h: Remove reset_switches.
	* src/main.c: (reset_switches): Remove reset_switches.
	* (main): Remove call to reset_switches.
	* (decode_switches): Filter out duplicate flags.
	* src/variable.c: (set_special_var):  Remove call to reset_switches.
	* tests/scripts/variables/MAKEFLAGS: Verify that duplicate flags are
	properly filtered out.

2022-07-07  Paul Smith  <psmith@gnu.org>

	Add gnulib findprog-in

	Add gnulib concat-filename

	Add gnulib getloadavg

	Initial gnulib-port branch commit

2022-06-19  Paul Smith  <psmith@gnu.org>

	Don't add GNUMAKEFLAGS to the environment
	If GNUMAKEFLAGS was not present in the environment when we started,
	don't add it.

	* src/main.c (main): Don't mess with GNUMAKEFLAGS unless it exists.
	* tests/scripts/variables/GNUMAKEFLAGS: Test this behavior.

2022-06-18  Paul Smith  <psmith@gnu.org>

	* tests/test_driver.pl: Don't freak if diff can't be found

	* build_w32.bat [WIN]: Use call for all invocations

2022-06-17  Paul Smith  <psmith@gnu.org>

	Avoid overwriting buffers with long pathnames
	Reported, with initial patch, by Gisle Vanem <gvanem@online.no>

	* src/main.c (find_and_set_default_shell) [W32]: Pass search_token
	directly to w32ify: no need to make a copy first.  When we need to
	construct a path, use snprintf() to be sure we don't overwrite
	the locally-allocated buffer.
	* src/w32/pathstuff.c (w32ify) [W32]: Use the malloc version of
	_fullpath(), followed by strncpy(), to avoid overwriting buffers.

2022-06-04  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/temp_stdin: Remove nested "my"
	* tests/scripts/features/statipattrules: Remove unset variable refs.

2022-06-04  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* tests/scripts/features/archives: Fix typo

2022-06-04  Sergei Trofimovich  <siarheit@google.com>

	[SV 62100] Add '--shuffle' option support
	Introduce non-deterministic ordering into goal and prerequisite
	traversal to help tease out inconsistent failures that may happen
	when running in parallel build mode.

	Introduce second order into each dependency chain:
	1. Existing order is syntactic order reachable via 'dep->next'
	2. New order is shuffled order stored as 'dep->shuf' in each 'dep'

	When updating goals and prerequisites and '--shuffle' is provided,
	use the shuffled order to walk the graph.  When automatic variable
	are set always use the syntactic order of parameters.

	* Makefile.am: Add new src/shuffle.c and src/shuffle.h file.
	* build_w32.bat: Ditto.
	* builddos.bat: Ditto.
	* makefile.com: Ditto.
	* po/POTFILES.in: Ditto.
	* doc/make.texi: Add documentation for --shuffle.
	* doc/make.1: Ditto.
	* src/dep.h (DEP): Add the shuf pointer.
	* src/filedef.h (struct file): Add was_shuffled flag.
	* src/main.c: (shuffle_mode): Global flag for the shuffle mode.
	(usage): Add the --shuffle option.
	(switches): Ditto.
	(main): Set shuffle_mode based on the command line parameter.
	Reshuffle prerequisites if requested.
	* src/remake.c (update_goal_chain): Walk the shuffled list if enabled.
	(update_file_1): Ditto.
	* src/shuffle.h: Provide an interface for shuffling prerequisites.
	* src/shuffle.c: Implement option parsing and prerequisite shuffling.
	* tests/scripts/options/shuffle: Test shuffle option and modes.

2022-06-04  Paul Smith  <psmith@gnu.org>

	* src/misc.c (make_toui): Parse a string into an unsigned int
	* src/makeint.h: Declare it.
	* src/arscan.c (ar_scan): Replace atoi() calls with make_toui().
	Modify some integral types to be more correct.
	* src/job.c (load_too_high): Replace atoi() calls with make_toui().
	* src/main.c (main): Ditto.
	(decode_switches): Ditto.

	* src/misc.c (make_pid): A function to return the PID
	* src/makeint.h: Declare it.
	* src/commands.c (fatal_error_signal): Call it.

	* po/LINGUAS: Add a translation for Romanian

2022-04-24  Noah Goldstein  <goldstein.w.n@gmail.com>

	Replace strcmp() with memcmp() where possible
	memcmp() is always faster than strcmp().  In places where we already
	know that both buffers have sufficient size, replace strcmp() with
	memcmp().

	* src/main.c (main): Replace strncmp() with memcmp()==0.
	* src/read.c (word1eq): Ditto.
	* src/commands.c (set_file_variables): Ditto.
	* src/function.c (func_filter_filterout): Ditto.
	(a_word_hash_cmp): Use STRING_N_COMPARE since we know the length.
	(func_sort): Replace strcmp() with memcmp().

2022-04-24  Noah Goldstein  <goldstein.w.n@gmail.com>

	hash: Remove unnecessary isupper() check before tolower()
	The standard requires that tolower() returns its argument if there's
	no valid lowercase conversion: it's not necessary to check isupper()
	before invoking tolower().

	Comparing the performance of the old ISTRING_HASH to the new one
	on all the files present in GLIBC.

	  Data Type            Old Time   New Time
	  Alternating case    24985.754  13883.422
	  random case         35211.777  13569.051
	  all lower           18818.974  13706.645
	  all upper           38859.454  13506.315

	* src/hash.h (ISTRING_HASH_1): Omit isupper() check.
	(ISTRING_HASH_2): Ditto.

2022-04-24  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62206] Fix %-substitution in second expansion of pattern rules
	During second expansion of pattern rules only the first pattern in
	each "group" was being substituted.  E.g. in this makefile:

	  .SECONDEXPANSION:
	  all: hello.x
	  %.x: $$(wordlist 1, 99, %.1 %.%.2) ; $(info $@ from $^)
	  hello.1 hello.\%.2 \%.1 \%.\%.2: ;

	the output would build "hello.1" and "%.%.2" because each function
	is considered a single "word" and only the first pattern is replaced.

	Fix the expansion so each whitespace-separated string is considered a
	word and the first pattern is replaced, giving "hello.1" and
	"hello.%.2".

	* src/rule.c (snap_implicit_rules): Keep enough space to replace %
	with $(*F) if necessary.
	* src/implicit.c (pattern_search): During second expansion break each
	get_next_word result into individual words and replace the first % in
	each with $* or $(*F) as needed.
	* tests/scripts/features/patternrules: Add tests for variations.

2022-04-24  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62175] Rework secondary expansion tests
	The hash function we use can yield different results on big- and
	little-endian systems which makes test output different.  Choose
	names to avoid this.

	* tests/scripts/features/patternrules: Choose portable target names.
	* tests/scripts/features/se_explicit: Ditto.
	* tests/scripts/features/se_implicit: Ditto.

2022-04-24  Paul Smith  <psmith@gnu.org>

	* Makefile.am (check-regression): Rename jhelp to thelp

	* tests/scripts/options/dash-f: [SV 62118] Close STDIN
	On Windows we can't delete open files, so close STDIN before
	removing the temporary input file.

	* tests/scripts/features/reinvoke: [SV 62088] Close STDIN
	On Windows we can't delete open files, so close STDIN before
	removing the temporary input file.

	* tests/test_driver.pl (run_all_tests): Keep one copy of STDIN

	* Makefile.am: Add INSTALL to the EXTRA_DIST files

2022-04-24  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62356] If -R is set in the makefile, disable -r
	If -R is given on the command line it implies -r as well; make this
	same assumption if -R is provided in MAKEFLAGS set in the makefile.

	* src/main.c (main): Check no_builtin_variables_flag after reading
	makefiles.
	* tests/scripts/options/dash-r: Add a test.

2022-04-24  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62324] Simplify set_file_variables by passing in the stem
	Previously we always used the file->stem value as our stem in
	set_file_variables(); when that wasn't correct we had to temporarily
	set that value while the function was called, then reset it afterward.
	This led to issues (for example when we assumed the stem was a cached
	string but it wasn't).

	Avoid this by passing in the stem as an argument so that different
	values can be provided.

	Add tests to verify this.

	* src/commands.c (set_file_variables): Take second parameter stem to
	relieve the callers of set_file_variables() from setting/restoring
	file->stem.
	* src/commands.h (set_file_variables): Ditto.
	(execute_file_commands): Pass file->stem to set_file_variables().
	* src/file.c (expand_deps): Pass d->stem to set_file_variables() and
	remove set and restore of file->stem.
	* src/implicit.c (pattern_search): Pass stem to set_file_variables()
	and remove set and restore of file->stem.
	* tests/scripts/features/se_explicit: Add new tests.
	* tests/scripts/features/se_implicit: Ditto.
	* tests/scripts/features/se_statpat: Ditto.
	* tests/scripts/variables/automatic: Ditto.

2022-04-24  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62278] Only expand the first pattern during secondary expansion
	During normal pattern rule expansion only the first pattern (%) is
	expanded; however during secondary expansion all patterns were
	expanded.  Modify secondary expansion to match the behavior of normal
	expansion.

	Implementation tweaked by Paul Smith <psmith@gnu.org>

	* src/file.c (expand_deps): Don't use subst_expand() which replaces
	all % with $*: instead replace only the first one, by hand.
	Fix a memory leak where the dep structure was not always freed.
	* tests/scripts/features/statipattrules: Use .RECIPEPREFIX not TAB.
	Add a series of tests verifying that static pattern rules with and
	without secondary expansion both return the same results.

2022-04-24  Paul Smith  <psmith@gnu.org>

	* src/commands.h: [SV 62213] Forward-declare struct file / child

	* tests/test_driver.pl (toplevel): [SV 62174] Enforce the C locale

2022-04-24  Paul Smith  <psmith@gnu.org>

	[SV 62173] Fix archive tests for non-GNU systems
	Original patch from Dmitry Goncharov <dgoncharov@users.sf.net>

	Fix the ar flags to match the default values in make.  If the
	U option is supported, add it to the end not the beginning,
	since ARFLAGS now starts with a "-".

	* tests/test_driver.pl: Add defaults for global variables.
	(get_osname): Preserve $osname if it's set from $^O
	* tests/scripts/features/archive: Set the default arflags.
	If "U" is available add it to the end of the flags.

2022-04-24  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* tests/scripts/options/dash-l: [SV 62172] Skip if not available

	* src/read.c (check_specials): [SV 62171] Reset ARFLAGS under .POSIX

2022-04-24  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62145] Remove a stdin temp file on re-exec failure.
	If the re-exec fails, be sure to remove a temp makefile that was
	created to read from stdin.

	* src/job.c (exec_command): Return on failure.
	(child_execute_job): Call exit if exec_command returns.
	* src/job.h (exec_command): Don't mark as NORETURN.
	* src/main.c (main): Unlink stdin temporary file if re-exec fails.
	* tests/run_make_tests.pl: Get value for ERR_nonexe_file/ERR_exe_dir.
	* tests/scripts/features/temp_stdin: Test that temp file unlink works.

2022-04-18  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/errors: Fix Perl warnings
	* tests/scripts/options/dash-f: Ditto.

2022-02-27  Paul Smith  <psmith@gnu.org>

	[SV 62118] Correctly handle -f- options on re-exec
	The -f, -file, and --makefile options were not properly handled when
	re-exec'ing due to makefile updates.  This problem, plus a patch and
	tests, was reported by Dmitry Goncharov <dgoncharov@users.sf.net>.

	While examining this I found another bug: after re-exec we forgot the
	batch file was temporary and never deleted it.

	I decided to fix all these problems at once using a different fix
	than Dmitry's: I created a new internal-only command-line option,
	--temp-stdin.  When reconstructing the make options for a re-exec,
	replace the -f/--file/--makefile option that reads from stdin with
	--temp-stdin=<filename> so that the re-exec'd version of make knows
	it's a temporary batch file and will delete it.

	We no longer need to add the -o options because the re-exec'd make
	knows this is a temporary makefile and treats it as such.

	To simplify, replace the --file and --makefile options taking a
	filename, with just -f<filename> on re-exec.

	Some examples of the rewrite:

	  User command line               Re-exec command line
	  -----------------               --------------------
	  -f-                             --temp-stdin=<batch>
	  --file -                        --temp-stdin=<batch>
	  -f - --makefile a.mk            --temp-stdin=<batch> -fa.mk
	  --file=a.mk                     -fa.mk
	  -fa.mk                          -fa.mk
	  -Rf a.mk                        -Rf a.mk
	  -Rf-                            -R --temp-stdin=<batch>

	* src/main.c (stdin_offset): Remember the offset into the makefiles
	list of the batch file read from stdin.  Remove stdin_nm.
	(struct command_switch): Create a new --temp-stdin option, which
	also updates the makefiles list.
	(main): Add the temporary filename to the string cache.
	Move the tempfile handling after checking makefile arguments for "-"
	so that files provided via --temp-stdin are also handled specially.
	When rewriting re-exec options, we may need one more than we had
	originally so create a new argv list.  Walk through the original
	list and convert it to the new list, following the above process.
	(decode_switches): Set the stdin_offset flag if we see --temp-stdin.
	* tests/scripts/options/dash-f: Add many more tests, provided by
	Dmitry Goncharov <dgoncharov@users.sf.net>.

2022-02-27  Paul Smith  <psmith@gnu.org>

	* tests/scripts/variables/MAKE_RESTARTS: Remove TAB chars

	* README.git: Fix compiler options for ASAN

2022-02-27  Paul Smith  <psmith@gnu.org>

	Remove extraneous characters from fatal() calls
	The fatal() method adds ".  Stop.\n" to every message.

	* src/amiga.c (MyExecute): Remove newline from fatal() message.
	* src/job.c (<various>): Ditto.
	* src/file.c (snap_deps): Remove "." from fatal() message.
	* src/main.c (main): Ditto.
	* src/load.c: Ditto.
	* tests/scripts/targets/NOTINTERMEDIATE: Fix expected output.

2022-02-27  Paul Smith  <psmith@gnu.org>

	* src/main.c: Ensure the stdin temp file is deleted when dying.

2022-02-27  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 62088] Avoid re-exec due to stdin.
	The fix for SV 60595 causes make to re-execute when the makefile is
	read from stdin.  E.g.
	    $ printf 'all:; $(info hello)' | make -sf -

	Reported by Sergei Trofimovich <siarheit@google.com>
	Test added by Paul Smith <psmith@gnu.org>

	* src/main.c (main): Set the mtime of the stdin temporary file.
	* tests/scripts/features/reinvoke: Add a test.

2022-02-27  Paul Smith  <psmith@gnu.org>

	tests: Allow run_make_test() to avoid passing -f
	We already use undef makefile strings to mean "re-use the previous
	makefile", so if the string is empty we'll assume it means "don't
	use a makefile at all" (don't add -f).

	* tests/run_make_tests.pl (run_make_test): If the makefile string
	is empty, don't create a makefile or add -f.
	* tests/scripts/features/include: Change empty makefile to "\n".
	* tests/scripts/misc/close_stdout: Ditto.
	* tests/scripts/options/dash-r: Ditto.

2022-02-27  Paul Smith  <psmith@gnu.org>

	tests: Preserve Windows temp environment variables
	* src/main.c (main): Show the temp filename on error.  Also on
	Windows prefer TMP, then TEMP, and only lastly TMPDIR.
	* tests/test_driver.pl: Add TMP, TEMP, and USERPROFILE to the list
	of environment variables to preserve.

2022-02-26  Paul Smith  <psmith@gnu.org>

	* tests/test_driver.pl: Support STDIN redirection.
	Before running tests, duplicate STDIN then reset it after the test
	completes.  Also when -keep is provided, preserve the base and run
	files.

2022-02-21  Paul Smith  <psmith@gnu.org>

	Ensure buffers are large enough for integer values
	Issue raised by Sergei Trofimovich <siarheit@google.com>

	* src/makeint.h (INTSTR_LENGTH): Update for unsigned values.
	* src/function.c (func_lastword): Use INTSTR_LENGTH as buffer size.
	(shell_function_completed): Ditto.
	(func_call): Ditto.
	* src/remote-cstms.c (start_remote_job): Ditto.

2022-02-10  Paul Smith  <psmith@gnu.org>

	* <all>: Update copyright notices.

2022-02-06  Paul Smith  <psmith@gnu.org>

	* doc/make.1: Use "target" from the SYNOPSIS.
	Reported by Helge Kreutzmann <debian@helgefjell.de>

2022-02-06  Paul Smith  <psmith@gnu.org>

	Don't write $(shell ...) stdout to stderr on failure
	If a $(shell ...) invocation failed due to a command-not-found error,
	make wrote the stdout of that shell to our stderr for some reason.
	That seems very wrong.

	If the command's stderr was not redirected then its output would have
	already been written to its stderr, and if it was redirected then we
	shouldn't take it upon ourselves to force it to go to stderr!

	* src/function.c (func_shell_base): Append shell stdout even if the
	shell command failed.
	* tests/run_make_tests.pl: Determine the error generated for
	command-not-found situations.
	* tests/scripts/functions/shell: Verify that redirecting stderr to
	stdout will behave properly if the command is not found.

2022-02-06  Paul Smith  <psmith@gnu.org>

	* Basic.mk.template: Allow arguments to the check target.

2022-02-06  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 61805] Support quoted whitespace in .SHELLFLAGS with .ONESHELL
	* src/job.c (construct_command_argv_internal): Call recursively to
	parse .SHELLFLAGS when .ONESHELL is active.
	* tests/scripts/targets/ONESHELL: Add tests.

2022-02-06  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/double_colon: Update for modern tests.

	* tests/scripts/features/implicit_search: Add -r for safety.

2022-02-06  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 48643] Add more tests of intermediates and unrelated targets
	If a prereq of a pattern is explicitly mentioned as a prereq of an
	unrelated rule, it should not be considered an intermediate file.

	* tests/scripts/features/double_colon: Add tests mentioning unrelated
	explicit targets.
	* tests/scripts/features/grouped_targets: Ditto.
	* tests/scripts/features/implicit_search: Ditto.
	* tests/scripts/features/patternrules: Ditto.
	* tests/scripts/features/se_implicit: Ditto.
	* tests/scripts/features/statipattrules: Ditto.

2022-02-06  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 48643] Make prereqs mentioned in unrelated rules explicit
	* src/implicit.c (pattern_search): Set is_explicit when a prereq
	is mentioned in an unrelated rule.

	* src/implicit.c (pattern_search): [SV 61864] Fix debug output.

2022-02-06  Paul Smith  <psmith@gnu.org>

	Avoid interleaved $(info ) output
	Since $(info ) function output is written using two system calls for
	the message and the newline, it's possible for output from another
	parallel make job to sneak in between them.

	Reported by Paul Eggert <eggert@cs.ucla.edu>, who saw the report from
	Lars Ingebrigtsen <https://bugs.gnu.org/53358>.

	* src/function.c (func_error): Paul provided a fix but instead I
	rewrote the entire function: it's not possible for it to be invoked
	with anything other than exactly one argument so don't worry about
	re-combining the arguments.

2022-02-06  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/implicit_search: [SV 48643] Cleanups.

	* src/implicit.c (pattern_search): Use const ptrs when possible.
	Change suggested by Joe Filion <joefilion4@gmail.com>

	* src/job.c (load_too_high): Re-enable Linux /proc/loadavg checks.
	Further experimentation shows that my previous thinking that there
	was a problem using this was woefully mistaken.  The value generated
	by the kernel shows runn*ABLE* processes not runn*ING* processes.
	* NEWS: Announce the change.

	* doc/make.texi (Using One Shell): Correct example to use $<.

2022-01-17  Jouke Witteveen  <j.witteveen@gmail.com>

	* src/function.c (parse_textint): Handle ints without 0 properly.
	* tests/scripts/functions/intcmp: Add tests for values without 0.

2022-01-17  Paul Smith  <psmith@gnu.org>

	[SV 61226] Revert changes to detect missing included files
	The fix for SV 60595 introduced a backward-incompatibility: rules that
	purported to rebuild included files, but didn't actually do so, were
	treated as errors whereas before they were ignored.  This breaks a
	common idiom in makefiles where an empty recipe is created for an
	included makefile so make doesn't complain if it doesn't exist.

	Unfortunately this means make cannot diagnose some types of errors.

	Extra tests supplied by Dmitry Goncharov <dgoncharov@users.sf.net>.

	* doc/make.texi (Including Other Makefiles): Clarify this behavior.
	* src/main.c (main): Don't run the new check-for-errors behavior.
	* tests/scripts/features/reinvoke: Reset tests of the "old" behavior
	and add new tests for this situation.

2022-01-17  Paul Smith  <psmith@gnu.org>

	Ensure that loaded functions increment the command count
	Since we don't know what a loaded function (via Guile or load) may
	do, increment the command count just in case.

	* src/function.c (struct file_table_entry): New adds_command bool.
	(FT_ENTRY): Initialize it to 0 for built-in functions.
	(expand_builtin_function): If adds_command, increment the count.
	(define_new_function): Set adds_command for loaded functions.

2022-01-17  Paul Smith  <psmith@gnu.org>

	* src/read.c (tilde_expand): Put back '/' before returning.
	Joe Filion <joefilion4@gmail.com> noted that the string is modified,
	and Henrik Carlqvist <hc94@poolhem.se> noticed that it wasn't put
	back in all cases.

2021-12-29  Paul Smith  <psmith@gnu.org>

	* tests/scripts/targets/INTERMEDIATE: Rewrite for new test method

2021-12-29  Paul Smith  <psmith@gnu.org>

	Do not force targets to be SECONDARY
	In SV 43677 we forced targets to be secondary if we found an
	intermediate file that was listed as a prerequisite of another
	target.  This overrides .INTERMEDIATE settings, so doesn't work.
	Now that we have an is_explicit flag in targets, use that instead.

	* src/implicit.c (pattern_search): Remove setting of secondary.
	Preserve the value of the is_explicit flag when creating a new
	file target, and consider it when setting the intermediate flag.
	* tests/scripts/features/patternrules: Add a test w/out INTERMEDIATE
	* tests/scripts/targets/INTERMEDIATE: Add a test with INTERMEDIATE

2021-12-29  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 48643] Preserve target-specific variables on intermediate files
	Target-specific variables used to define the target as "ought to
	exist" so they could never be intermediate.  Now they can be, so
	merge the target-specific variables from the intermediate target
	so they're not lost.

	* src/implicit.c (pattern_search): Use merge_variable_set_lists
	to merge target-specific variables.
	* tests/scripts/features/implicit_search: Add tests of target-
	specific variable assignments and implicit rules.

2021-12-29  Paul Smith  <psmith@gnu.org>

	* README.template: Clean up patch submission information

2021-12-19  Jouke Witteveen  <j.witteveen@gmail.com>

	* src/read.c (find_percent_cached): [SV 60798] Silence GCC11 warnings

	[SV 60798] Silence bogus GCC10 and GCC11 warnings
	* src/main.c (main): Use a separate variable to track final character.
	* src/read.c (eval): Track the semicolon position not one beyond it.
	* src/variable.c (do_variable_definition): Include a default switch
	case to ease the work of the exhaustiveness prover.

2021-12-19  Paul Smith  <psmith@gnu.org>

	Update documentation with instructions for patch submission
	* README.template: Add notes on how to submit patches.
	* README.git: Point to the README.
	* doc/make.texi: Ditto.

2021-12-19  Paul Smith  <psmith@gnu.org>

	Change HTTP URLs to use HTTPS instead
	Also remove unnecessary tests/COPYING file.

	* README.template: Change http: to https:
	* README.git: Ditto
	* doc/make.texi: Ditto
	* doc/make.1: Ditto
	* src/main.c: Ditto
	* maintMakefile: Remove invalid URL

2021-12-19  Paul Smith  <psmith@gnu.org>

	* src/makeint.h: Compute INTSTR_LENGTH based on size of intmax_t
	Math suggested by Edward Welbourne <edward.welbourne@qt.io>

2021-12-19  Paul Eggert  <eggert@cs.ucla.edu>

	Remove arbitrary limits on intcmp integers
	We don't need to parse strings into C integer values to compare them.

	* src/function.c (parse_textint): Find boundaries of a numeric string.
	(func_intcmp): Use parse_textint() to compare integers textually.
	* tests/scripts/functions/intcmp: Test with extra-large numbers.

2021-12-19  Paul Smith  <psmith@gnu.org>

	Use a well-known error string for out-of-bound function arguments
	* src/function.c (parse_numeric): Check for empty value and error.
	If we find ERANGE just print our own error, not strerror.
	(func_word): Use a generic "not good" error message.
	(func_wordlist): Ditto
	(func_intcmp): Ditto
	* tests/run_make_tests.pl: Remove code to find strerror(ERANGE)
	* tests/scrips/functions/intcmp: Update the error message.
	* tests/scrips/functions/word: Ditto.

	* doc/make.text (Wildcards): Document that glob results are sorted.

2021-12-19  Paul Smith  <psmith@gnu.org>

	[SV 61621] Don't use POSIX_SPAWN_RESETIDS with posix_spawn()
	When make is invoked in a environment where the user namespace is
	restricted, such as under unshare(1) (on GNU/Linux), it won't be able
	to find its real UID so the effective UID can't be set to it and
	posix_spawn() will fail with EINVAL.

	It's not less safe to run recipe jobs using the same UID values that
	make was invoked with, so don't worry about this flag.

	* src/job.c (child_execute_job): Don't set POSIX_SPAWN_RESETIDS flag.

2021-12-05  Paul Smith  <psmith@gnu.org>

	* .gitignore: Ignore patch files.

2021-11-28  U2FsdGVkX1  <u2fsdgvkx1@gmail.com>  (tiny change)

	* src/commands.c (fatal_error_signal) [W32]: Use %lu for DWORD.
	* src/function.c (windows32_openpipe) [W32]: Ditto.

2021-11-28  Paul Smith  <psmith@gnu.org>

	* NEWS: Update with author details

	Special-case Windows error results
	* tests/scripts/features/errors: Match Windows-specific errors.
	* tests/scripts/features/targetvars: Match Windows-specific errors.
	* tests/scripts/misc/general4: Match Windows-specific errors.

2021-11-28  Paul Smith  <psmith@gnu.org>

	Convert word, wordlist, and intcmp functions to use long long
	Modify make functions that parse integer values to use long long
	values instead of long: on Windows long is the same as int (4 bytes)
	and we don't want behavior to differ between different platforms.

	* bootstrap.conf: Change strtol module to strtoll module.
	* src/function.c (parse_numeric): Use strtoll() and return long long.
	(func_word): Use long long.
	(func_wordlist): Use long long.  Verify second argument is >= 0.
	(func_intcmp): Use long long.
	* src/config.ami.template: Don't define HAVE_STRTOLL.
	* src/config-vms.template: Define HAVE_STRTOLL.
	* src/config.W32.template: Define HAVE_STRTOLL.
	* tests/run_make_tests.pl: Set $ERR_out_of_range to the proper string.
	* tests/scripts/functions/word: Rework to use the new style and avoid
	TAB characters.  Verify trailing whitespace is ignored.  Add a test
	for a negative second argument to wordlist.  Add tests for max signed
	integer values.  Use $ERR_out_of_range for the error string.
	* tests/scripts/functions/intcmp: Add tests for min and max signed
	integer values.  Use $ERR_out_of_range for the error string.

2021-11-28  Jouke Witteveen  <j.witteveen@gmail.com>

	Introduce $(intcmp ...) for numerical comparison
	Numbers can come from $(words ...), automatic variables such as
	$(MAKELEVEL), from environment variables, or from shell output such as
	through $(shell expr ...).  The $(intcmp ...) function allows
	conditional evaluation controlled by numerical variables.

	* NEWS: Announce this feature.
	* doc/make.texi (Functions for Conditionals): Document 'intcmp'.
	* src/function.c (func_intcmp): Create the 'intcmp' built-in function.
	* tests/scripts/functions/intcmp: Test the 'intcmp' built-in function.

2021-11-28  Jouke Witteveen  <j.witteveen@gmail.com>

	Use strtol() instead of atoi()
	strtol() is part of C89 and a fallback is provided by gnulib.

	* src/function.c (func_word, func_wordlist): Change atoi to strtol.
	* test/scripts/functions/word: Add out-of-range verification testing.

2021-11-27  Jouke Witteveen  <j.witteveen@gmail.com>

	* src/makeint.h: Removed unused atol declaration

2021-11-27  Paul Smith  <psmith@gnu.org>

	* src/implicit.c (pattern_search): Fix text for easier translation.

	[SV 48643] Update the implicit rule search docs
	* NEWS: Announce the change.
	* doc/make.texi (Implicit Rule Search): Update the definition of
	"ought to exist" and add the extra step for compatibility mode.

2021-11-27  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 48643] Enhance "ought to exist" definition
	The traditional definition of "ought to exist" in the user's manual can
	lead to make choosing a poor series of chained implicit rules.  Modify
	that rule so that we first attempt to resolve implicit rules by
	considering targets which are only (a) targets or (b) explicit
	prerequisites of the current target.

	For backward-compatibility, if we don't find a solution using that
	algorithm use the previous definition where "ought to exist" means
	"mentioned as a prerequisite of any target".

	* src/implicit.c (pattern_search): An extra argument controls whether
	to perform the backward-compatible rule search or not.  If a prereq is
	a target, or if it's a prerequisite of THIS target, then choose it.
	If we get to the end and haven't found a match, but we have found a
	potential compatibility rule, then retry with compat rules enabled.
	If we're searching with compat rules enabled and we find a file
	mentioned as a prerequisite of ANY target, then use it.
	* tests/features/implicit_search: Provide a large suite of tests for
	different steps of implicit rule search.

2021-11-27  Paul Smith  <psmith@gnu.org>

	tests: Enhance output to contain filename/line number info
	* tests/scripts/options/dash-I: Use string comparison operator.
	* tests/test_driver.pl (cmd2str): New method to convert a
	command line to a string with proper quoting.
	* tests/run_make_tests.pl (create_command): Call cmd2str() to format
	the command.  Add the filename/line number to the output.

2021-10-18  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 61042] Enhance logging of implicit rule search
	Logging of implicit rule search gives limited information as to why a
	given implicit rule was rejected, and if no implicit rule is found we
	get the confusing "No rule to make target" result when the real issue
	is that some prerequisite of some implicit rule could not be built.

	Enhance logging around implicit rule search as follows:
	1. The messages which refer to a rule print a description (the targets
	   and prerequisites) of the rule.
	2. A new message tells when a rule is rejected, along with the reason.
	3. The 'Looking for an implicit rule...' message is printed for every
	   prerequisite, not just the top-level target.
	4. "Trying harder" message is printed, when intermediate prerequisites
	   are going to be searched.
	5. The 'No rule found...' and 'Found implicit rule...' messages are
	   printed for every prerequisite, not just the top-level target.
	6. "Ought to exist...", "Found..." or "Not found..." message is
	   printed for each prerequisite.

	* src/rule.h (struct rule): Remember the definition of the rule.
	* src/rule.c (get_rule_defn): Compute the definition of a rule.
	(install_pattern_rule): Initialize the definition to empty.
	(create_pattern_rule): Ditto.
	(freerule): Free the definition.
	(print_rule): Use the definition when printing rules.
	* src/remake.c (update_file_1): Push debug output down into
	try_implicit_rule().
	* src/implicit.c (try_implicit_rule): Add debugging
	(pattern_search): Show the rule definition in various debug output.
	Add new debug messages for implicit rule search.

	Additional changes by Paul Smith <psmith@gnu.org>:

	Since we usually don't need the rule definition, defer computing it
	until we do.

	* bootstrap.conf: Include the mempcpy Gnulib module.
	* src/makeint.h (mempcpy): Declare mempcpy if not available.
	* src/misc.c (mempcpy): Define mempcpy if not available.
	* src/config.h-vms.template: Don't set HAVE_MEMPCPY.
	* src/config.h.W32.template: Ditto.
	* src/rule.h (get_rule_defn): Return the definition of a rule.
	* src/rule.c (get_rule_defn): If we don't have a definition compute
	it; either way return it.
	* src/implicit.c (pattern_search): Rework the handling of explicit
	prerequisites to pattern rules to be more clear.  There is no change
	in behavior.

2021-10-17  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* doc/make.texi (Special Targets): [SV 61122] Add .SECONDARY example

2021-10-17  Paul Smith  <psmith@gnu.org>

	* README.git: Update C version prerequisite

2021-09-20  Paul Smith  <psmith@gnu.org>

	Add support for the POSIX :::= assignment operator.
	POSIX Issue 8 will require a new assignment operator, :::=.
	This operator behaves similarly to the BSD make := operator: the
	right-hand side is expanded immediately, but then the value is
	re-escaped (all '$' are converted to '$$') and the resulting variable
	is considered a recursive variable: the value is re-expanded on use.

	* src/variable.h (enum variable_flavor): Add f_expand flavor.
	* src/variable.c (do_variable_definition): When defining f_expand,
	post-process the result to re-escape '$' characters.
	Remove default: to the compiler warns about un-handled enum values.
	Set recursive values for both f_recursive and f_expand.
	(parse_variable_definition): Rewrite this method.
	The previous version was annoying to extend to ':::='.
	(print_variable): Remove default: so the compiler warns us about
	un-handled enum values.
	* src/function.c (func_origin): Remove default: so the compiler warns
	us about un-handled enum values.
	* doc/make.texi: Add documentation for :::=.
	* tests/scripts/variables/define: Add a test for define :::=.
	* tests/scripts/variables/flavors: Add tests for :::=.
	* tests/scripts/variables/negative: Add tests for :::=.

2021-09-07  Paul Smith  <psmith@gnu.org>

	Clean up more Windows warnings.
	* src/config.h.W32.template: Re-enable warnings that we don't violate.
	Add a new disabled warning: 4130 (logical operation on address of
	string constant).
	* src/w32/compat/posixfcn.c: Make makeint.h the first included header.
	* src/w32/subproc/sub_proc.c: Ditto.  It includes config.h already.

2021-09-07  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 60435] Ensure intermediate grouped files are removed
	If multiple intermediate files are built together be sure all of them
	are removed after make is finished.  Continue to ensure that targets
	that exist before make starts are not removed even if they appear to be
	intermediate.

	Add a number of tests to pattern rules to verify this behavior.

	* src/filedef.h (struct file): Add a new is_explicit bitfield.
	* src/file.c (rehash_file): Merge the is_explicit bit.
	(enter_prereqs): Set is_explicit if the file is explicitly mentioned.
	* src/implicit.c (pattern_search): Set intermediate on the file if it's
	not explicit.
	(record_files): Set is_explicit if a file is mentioned as a target.
	* src/remake.c (update_file_1): Set secondary on files that already
	exist so they won't be removed.
	* tests/scripts/features/double_colon: Add a test for double-colon
	pattern rules.
	* tests/scripts/features/patternrules: Update KGO for tests where more
	files are removed.
	Add new tests to verify handling removal of intermediate files in the
	context of grouped pattern targets.

2021-09-06  Paul Smith  <psmith@gnu.org>

	* src/default.c (default_variables): Use CPP in PREPROCESS.S.

2021-09-06  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* src/main.c (decode_debug_flags): [SV 607777] Preserve -d options
	* tests/scripts/options/dash-d: Test that -d --trace keeps -d.

2021-09-06  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 57778] Don't ignore included makefiles that can't be read
	If we find an included makefile but it's not readable, stop
	immediately with an error rather than continuing to look in other
	directories.

	* src/read.c (eval_makefile): Only keep searching if the fopen error
	is ENOENT, else stop and fail.
	* tests/scripts/features/include: Add tests to verify this behavior.

2021-09-06  Paul Smith  <psmith@gnu.org>

	[SV 60795] Don't remake phony included makefiles and show errors
	Change the handling of included makefiles which are phony targets to
	be similar to double-colon rules with no prerequisites: simply don't
	build them at all during the remake a makefile phase.

	Ensure that any included makefile which is needed but not built
	results in an error.

	Update the documentation to make this clear.
	Add tests to verify this behavior.

	* doc/make.texi (Remaking Makefiles): Clarify double-colon exception.
	Document that phony targets are handled the same way.
	(Phony Targets): Ditto.
	* src/main.c (main): Check for phony targets when skipping goals.
	Rather than throwing out skipped but failed goals keep them
	separately then report them as errors.
	* src/read.c (eval): Set the file location on included makefiles even
	when there's no error.
	* tests/scripts/features/include: Add tests for handling included
	makefiles with both phony and double-colon rules to rebuild them.

2021-09-06  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Environment): [SV 60841] Clarify variable exporting.

	* doc/make.texi (Chained Rules): [SV 60904] Clarify intermediate files.

2021-09-06  Paul Smith  <psmith@gnu.org>

	Remove UBSAN issues discovered via fuzzing tests.
	The arithmetic conversions in C say that if a binary operator has an
	unsigned and signed type as operands and the unsigned type has a greater
	rank then the signed value is converted to unsigned.  This is bad if the
	signed value is negative.

	There are a few places in the code which have this situation; convert
	the signed value to positive and add instead of subtracting.

	Reported by He Jingxuan <jingxuan.he@inf.ethz.ch>

	* src/read.c (find_map_unquote): Use a positive int in memmove().
	(find_char_unquote): Ditto.
	(find_percent_cached): Ditto.

2021-09-05  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Prerequisite Types): [SV 61069] Mention PHONY prereqs

	* doc/make.1: Clean up man page text.

	* README.git: Add a section on ways to test.

	* src/main.c (decode_switches): Fix memory leak.

	Clean up a few Windows build warnings (not all!)
	* build_w32.bat: Quote uses of %VSWHERE% so it can contain spaces
	* src/hash.c (hash_init): Avoid use of an undefined struct.
	(hash_rehash): Ditto.
	* src/vpath.c (construct_vpath_list): Cast explicitly to void*.

2021-09-05  Paul Smith  <psmith@gnu.org>

	[SV 45211] Parse MAKEFLAGS immediately when it's reset
	When MAKEFLAGS is set in a makefile, reparse it immediately rather
	than waiting until after all makefiles have been read and parsed.
	This change doesn't actually fix the SV bug referenced because, even
	though we do reparse MAKEFLAGS, we don't handle the -r or -R options
	immediately.  Doing this will require more effort.

	* NEWS: Announce the change.
	* src/makeint.h: Publish reset_switches() and decode_env_switches()
	from main.c
	* src/main.c (main): Don't call construct_include_path(); it will be
	invoked decode_switches().
	Preserve the old values of builtin_rules, builtin_variables, and
	job_slots before we read makefiles since they can be changed now.
	(reset_switches): Publish (remove static).  Set the initial value of
	the stringlist list to NULL.
	(decode_switches): Call construct_include_path() after decoding.
	(decode_env_switches): Publish (remove static).
	(define_makeflags): Set the MAKEFLAGS variable for special handling.
	* src/read.c (eval_makefile): Check for empty include_directories.
	(construct_include_path): Clear any old value of .INCLUDE_DIRS before
	appending new values.  Free the previous include_directories.
	* src/variable.c (lookup_special_var): When MAKEFLAGS is set, first
	reset the switches then re-parse the variable.
	* tests/run_make_tests.pl: Memo-ize some default variable values.
	* tests/scripts/options/dash-r: Create tests for setting -r and -R.
	* tests/scripts/variables/MAKEFLAGS: Test that resetting -I from
	within the makefile takes effect immediately.

2021-09-05  Paul Smith  <psmith@gnu.org>

	* make-gdb.py: Add pretty-printers and clean up.
	Create a pretty-printer for next-pointer lists.
	Create a pretty-printer for stringlists.
	Change showargv from a function to a command (easier to use).

	Clean up some Python PEP violations.  Add support for testing null
	pointers and caching gdb.Types.

2021-09-03  Paul Smith  <psmith@gnu.org>

	[SV 60595] Restart whenever any makefile is rebuilt
	Previously if an included makefile was rebuilt as a prerequisite of
	another included makefile which didn't need to be rebuilt, make would
	not realize that it needed to re-exec itself.

	Ensure that if any included makefile target is rebuilt we re-exec.
	Also ensure that if an included makefile is not readable, and our rule
	for rebuilding it doesn't actually change it, we will still fail.

	* src/remake.c (update_goal_chain): If a goal's update was successful
	then check its status, even if no actual commands were run because it
	was already up to date.
	(show_goal_error): Remove superfluous cast.
	* src/main.c (main): If the makefile remake did nothing, check that we
	were able to successfully include all the makefiles we care about; if
	not fail.  When generating error messages about included makefiles be
	sure to show the filename/linenumber information.
	* test/scripts/features/reinvoke: Add tests for this behavior.
	* test/scripts/options/dash-k: Update error messages.

2021-09-03  Paul Smith  <psmith@gnu.org>

	[SV 60412] Allow -I- to throw out the current directory path
	Accept a "-" directory value to the -I option to clear the set of
	directories to be searched up to that point, including the default
	directories.

	* NEWS: Announce the change.
	* doc/make.texi (Summary of Options): Add documentation.
	* src/read.c (construct_include_path): Check for '-' and if found,
	clear the list of directories to be searched.
	* tests/scripts/options/dash-I: Add tests for -I-.
	* tests/scripts/variables/INCLUDE_DIRS: Add tests for -I-.

2021-07-25  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 60699] Avoid calling strlen() repeatedly in a loop
	* src/variable.c (lookup_pattern_var): Accept target length parameter.
	(initialize_file_variables): Pass computed target length to lookup.

2021-07-25  Paul Smith  <psmith@gnu.org>

	* NEWS: Add a few missing attributions
	* AUTHORS: Add some missing attributions

2021-07-25  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 60297] Add .NOTINTERMEDIATE special target
	Support a new special target, .NOTINTERMEDIATE.  Any file or pattern
	prerequisite of this target will never be considered intermediate.
	This differs from .SECONDARY in that .SECONDARY files won't be deleted
	but they will still not be built if they are missing.

	.NOTINTERMEDIATE files are treated the same way as a target which is
	explicitly mentioned in the makefile.  This is mostly useful with
	patterns; obviously mentioning a target explicitly here is enough in
	and of itself to make something not intermediate.

	Some adjustments made by psmith@gnu.org

	* NEWS: Announce the new feature.
	* doc/make.texi (Special Targets): Document .NOTINTERMEDIATE.
	(Chained Rules): Describe how to use .NOTINTERMEDIATE.
	* src/main.c (main): Add "notintermediate" to the .FEATURES variable.
	* src/filedef.h (struct file): Add "notintermediate" flag.
	* src/file.c (no_intermediates): Mark global .NOTINTERMEDIATE.
	(snap_file): Support .NOTINTERMEDIATE special target.  Throw an error
	if the same target is marked both .NOTINTERMEDIATE and .SECONDARY or
	.INTERMEDIATE.
	(rehash_file): Merge intermediate, notintermediate, secondary flags.
	(remove_intermediates): Check notintermediate flag before removing.
	(print_file):
	* src/implicit.c (pattern_search): Set notintermediate based on the
	pattern.
	* tests/scripts/targets/NOTINTERMEDIATE: Add a new test suite.

2021-05-30  Paul Smith  <psmith@gnu.org>

	* make.texi (Reading Makefiles): != creates recursive variables.
	Reported by Ronald Hoogenboom <RHoogenboom@irdeto.com>.

2021-05-30  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 60659] Set $$< properly in second expansion
	Set the $$< automatic variable as best we can during secondary
	expansion of prerequisites.

	* src/commands.c (set_file_variables): Don't break without setting
	'less' if secondary expansion is enabled.
	* tests/scripts/features/se_explicit: Test secondary expansion results.
	* tests/scripts/features/se_implicit: Test secondary expansion results.

2021-05-30  Paul Smith  <psmith@gnu.org>

	[SV 58341] Add non-trivial options to $(MAKEFLAGS)
	Previously only trivial (single-letter) options were available in
	$(MAKEFLAGS) when it is examined from inside a makefile (the full
	value was set before expanding recipes).

	Ensure that all options (but, not command line variable overrides!)
	are visible in the $(MAKEFLAGS) variable.  In order to do this
	reset the default values of options, particularly options which are
	lists, before re-reading MAKEFLAGS after makefiles have been read.
	Otherwise we'll get duplicate values for options such as -I.

	Unfortunately there are complications here as well: sometimes (for
	jobserver options in particular) we modify the values of these
	options while running: we must not reset these modifications.

	* NEWS: Announce this change
	* src/main.c (main): Call new reset_switches() before re-parsing
	MAKEFLAGS.
	(reset_switches): Reset the value of non-special options to their
	defaults.
	(define_makeflags): Add non-special options into MAKEFLAGS even
	if 'all' is not set.

2021-05-30  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 60378] Don't add duplicate default search directories
	Depending on how make was configured it may add duplicate
	directories in the default include search path: avoid this.

	(Tweaked by psmith@gnu.org)

	* configure.ac: Set AM variable KNOWN_PREFIX if --prefix is known
	* Makefile.am: Only set INCLUDEDIR if prefix is not known
	* read.c [default_include_directories]: Only add INCLUDEDIR if set

2021-05-30  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* tests/scripts/targets/INTERMEDIATE: [SV 60188] Add one more test

2021-05-29  Eli Zaretskii  <eliz@gnu.org>

	[SV 58656] Fix mtime for large files on MS-Windows
	In MSVC builds, 'stat' fails when called on files larger than
	2GB.  Call '_stat64' instead to work around this.

	* src/remake.c (STAT): Define to '_stat64' for MSVC builds.
	(name_mtime) [WINDOWS32]: Use STAT instead of 'stat'.
	Suggested by Makoto Kato <m_kato@ga2.so-net.ne.jp>.

2021-03-28  Paul Smith  <psmith@gnu.org>

	Fix build and test issues on Windows
	* src/dep.h (DEP): Remove extraneous semicolon.
	* src/dir.c (find_directory) [W32]: Replace removed variable.
	* tests/scripts/features/include: Allow the extra default makefile
	searched for on Windows.
	* tests/scripts/functions/file: Use $(info ...) to avoid "command
	too long" errors on Windows.

2021-03-28  Tobias Stoeckmann  <tobias@stoeckmann.org>  (tiny change)

	* src/remake.c (name_mtime): Reserve space for nul in readlink result

2021-03-25  Cao jin  <caoj.fnst@cn.fujitsu.com>  (tiny change)

	* doc/make.texi (Call Function): Apply consistent formatting

2021-03-25  Pete Dietl  <petedietl@gmail.com>  (tiny change)

	* src/job.c (child_execute_job): Update gnulib find_in_given_path()

2021-03-25  Mike Frysinger  <vapier@gentoo.org>  (tiny change)

	* doc/make.texi (Automatic Variables): Relocate the $? example

2021-03-15  Paul Smith  <psmith@gnu.org>

	[SV 58497] Ensure $(file <) newline removal succeeds
	Keep a count of bytes read rather than comparing pointers since the
	variable_buffer might get reallocated.

	Bug and patch by Ken Tossell <ken@tossell.net>
	Regression tests by Dmitry Goncharov <dgoncharov@users.sf.net>
	Tweaked by Paul Smith <psmith@gnu.org>

	* src/function.c (func_file): Use bytes read rather than a pointer.
	* tests/scripts/functions/file: Provide various tests for reading
	empty files, files with/without newlines, and large files.

2021-03-15  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 60188] Explicit prereqs cannot be intermediate files
	If a prereq of a pattern is an explicit target, it should not be
	considered an intermediate file.

	(Minor tweaks by Paul Smith <psmith@gnu.org>)

	* src/dep.h (struct nameseq): Add is_explicit flag.
	* src/implicit.c (struct patdeps): Ditto.
	(pattern_search): Set the is_explicit flag appropriately for each
	prerequisite, based on whether it contained a pattern or not.
	Update the help output to note implicit vs. explicit prereqs.
	* tests/scripts/features/double_colon: Add tests.
	* tests/scripts/features/grouped_targets: Ditto.
	* tests/scripts/features/patternrules: Ditto.
	* tests/scripts/features/se_implicit: Ditto.
	* tests/scripts/features/statipattrules: Ditto.

2021-03-15  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/exec: Small cleanup

2021-03-15  Paul Smith  <psmith@gnu.org>

	Ensure variable_buffer is always set.
	Initialize the global variable_buffer in main() so that it is never
	a null pointer.  Then invoking variable_expand("") is never needed:
	simply use the variable_buffer pointer when we want to restart the
	variable buffer.  The main point of this simplification is not to
	keep a separate pointer to the beginning of the buffer: this is
	dangerous because the buffer may be re-allocated.  Instead always
	use the variable_buffer pointer itself.

	* src/variable.h (initialize_variable_output): Publish.
	* src/expand.c (initialize_variable_output): Remove static.
	* src/main.c (main): Initialize variable_buffer.
	* src/file.c (enter_prereqs): Don't call variable_expand("") and
	don't save a separate buffer pointer than might be outdated.
	(expand_deps): Ditto.
	* src/read.c (record_files): Ditto.
	* src/remake.c (library_search): Ditto.

2021-03-15  Paul Smith  <psmith@gnu.org>

	[SV 59881] Handle vertical TAB consistently
	While parsing makefiles get_next_mword() was treating VTAB as a word
	character rather than a word separator.  However, when using
	find_next_token(), for example in patsubst_expand_pat(), we treated
	VTAB as a word separator causing multiple words to appear where we
	didn't expect them.

	* src/makeint.h (END_OF_TOKEN): Change from a loop to a boolean check.
	* src/misc.c (end_of_token): Move the loop here.
	* src/read.c (get_next_mword): Skip whitespace, not just blank, to
	find the start of the word and use END_OF_TOKEN() to decide when the
	current word is finished.

2021-03-14  Paul Smith  <psmith@gnu.org>

	[SV 59870] define/undefine prerequisites are not target-specific vars
	* src/read.c (parse_var_assignment): If called in a target-specific
	variable context don't allow define/undefine as variable assignments.
	* test/scripts/variables/define: Add a test.
	* test/scripts/variables/undefine: Add a test.

	* maintMakefile: Don't make .check-git-HEAD .PHONY

2021-03-07  Jouke Witteveen  <j.witteveen@gmail.com>

	More correctly describe the scope of variables
	* NEWS: Use "local" instead of the incorrect "lexically-scoped".
	* doc/make.texi: Refer to let/foreach variables as local variables.

2021-03-07  Paul Smith  <psmith@gnu.org>

	* doc/make.text: Clarify that patsubst doesn't touch unmatched words

	* .dir-locals.el: Update for newer LSP config

	* file.c (remove_intermediates): Restart "rm ..." on error

2020-12-07  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (How Patterns Match): [SV 58639] Fix chaining info.

2020-12-06  Jouke Witteveen  <j.witteveen@gmail.com>

	Create $(let ...) providing lexically scoped variables
	Add a new function $(let ...) which allows lexically scoped variables.

	* NEWS: Add information on this feature.
	* doc/make.texi (Let Function): Document the 'let' function.
	* src/function.c (func_let): Create the 'let' built-in function.
	* tests/scripts/functions/let: Test the 'let' built-in function.

2020-12-06  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Phony Targets): [SV 58961] Clarify pattern handling

	* doc/make.texi (Synchronized Terminal Output): [SV 58960] Fix link

2020-12-05  Paul Smith  <psmith@gnu.org>

	[SV 59169] Add --debug=why and --debug=print options
	Add debug options to print recipes even if they would otherwise be
	silent, and to print the reason that a target was considered out of
	date.

	Modify --trace to simply be a shorthand for --debug=print,why.

	* NEWS: Announce changes.
	* doc/make.texi (Summary of Options): Document the new options.
	* doc/make.1: Ditto.
	* src/debug.h: Add new flags DB_PRINT and DB_WHY.
	* src/makeint.h: Remove the trace_flag variable.
	* src/job.c (start_job_command): Check debug flags not trace_flag.
	(new_job): Ditto.
	* src/main.c (trace_flag): Make a static variable for switches.
	(decode_debug_flags): Set DB_PRINT and DB_WHY if trace_flag is set.
	* tests/scripts/variables/GNUMAKEFLAGS: Update known-good messages.
	* tests/scripts/variables/MAKEFLAGS: Ditto.

2020-12-05  Paul Smith  <psmith@gnu.org>

	* configure.ac: [SV 58836] Copy build.sh to the build directory

2020-12-05  Paul Smith  <psmith@gnu.org>

	[SV 57676] Support included files being built after failing
	If a -include file does not exist, then some subsequent operation
	creates it, then allow it to be successfully included.

	* src/read.c (eval_makefile): If our last mtime was NONEXISTENT then
	reset it to 0 so we'll check it again.
	* tests/scripts/features/include: Add a test for this behavior.

2020-12-02  Paul Smith  <psmith@gnu.org>

	* src/makeint.h (free_alloca): Check for builtin alloca

	* src/main.c (main): [SV 59601] Check for malformed env. variables

2020-11-29  Paul Smith  <psmith@gnu.org>

	* maintMakefile: [SV 58794] Check for file existence in the release

	* Makefile.am (HAVE_GUILE): Only use Guile options if HAVE_GUILE.

	* tests/scripts/features/vpathgpath: Avoid duplicate function name.

	Resolve unused-result warnings for alloca(0)
	* src/makeint.h (free_alloca): New macro to defeat warn_unused_result.
	* src/read.c (eval_makefile): Call it.
	(eval_buffer): Ditto.
	* src/remake.c (update_file): Ditto.

2020-11-29  Paul Smith  <psmith@gnu.org>

	Avoid some valgrind warnings
	Using sscanf() to parse archive header values (struct ar_hdr) can lead
	to valgrind warnings which are probably bogus but are annoying.
	To be safer, create a local method to convert the ASCII integer
	strings into integers.

	* src/arscan.c (parse_int): Turn integer strings into integers.
	(ar_scan): Initialize struct ar_hdr memory.
	Call parse_int() rather than sscanf/atol.

2020-11-29  Paul Smith  <psmith@gnu.org>

	[SV 41273] Allow the directory cache to be invalidated
	Each time we invoke a command it's possible that it will change the
	filesystem in ways that were not described by the target.  If that
	happens but we have cached previous directory contents then we may
	make decisions or report results based on obsolete information.

	Keep a count of how many commands we've invoked, and remember the
	current command count every time we load the contents of a directory.
	If we request the directory and the current command count has changed
	we know the cache is outdated so reload from scratch.

	* NEWS: Announce the change.
	* src/makeint.h (command_count): Create a global counter.
	* src/main.c (command_count): Ditto.
	* src/job.c (reap_children): Increment the counter on job completion.
	* src/function.c (func_file): Increment if we write a file.
	* src/dir.c (clear_directory_contents): Clear the current contents of
	a cached directory.
	(struct directory_contents): Remember the counter value.
	(struct directory): Remember the counter value for non-existing dirs.
	(find_directory): If we have a cached directory and the count hasn't
	changed then return it.  Else, clear the previous contents and re-read
	from scratch.
	* tests/scripts/features/dircache: Add tests of the directory cache.

2020-11-29  Paul Smith  <psmith@gnu.org>

	Support "unexport" in target-specific variables.
	Rewrite the environment variable algorithm to correctly inherit
	export settings from parent variable sets.  The new algorithm
	for computing the table of environment variables is:

	- Start with the most local variable set and proceed to global.
	- If the variable already exists in the table and we don't know
	  its export status, update it with the current variable's status.
	- If the variable is not in the table and it's not global, add it
	  regardless of its status so if it's unexported we remember that.
	- If the variable is not in the table and is global, check its
	  export status and don't add it if we won't export it.

	Then when generating the environment variables, check the export
	status of each variable in case it was a target-specific variable
	and we have determined it should not be exported.

	Rework SHELL handling to check at the end whether we added it or
	not and if we didn't, add the value from the environment.

	* NEWS: Announce support for target-specific "unexport"."
	* doc/make.texi (Target-specific): Document the support.
	* src/variable.h (enum variable_export): Make into a global type.
	* src/read.c (struct vmodifiers): Use enum variable_export rather
	than individual booleans.
	(parse_var_assignment): Parse the "unexport" keyword.
	(eval): Remember the vmodifier value in the variable.
	(record_target_var): Ditto.
	* src/variable.c (should_export): Check if the variable should be
	exported.
	(target_environment): Implement the above algorithm.
	* tests/scripts/features/export: Test export/unexport with variable
	assignments on the same line.
	* tests/scripts/features/targetvars: Add a comprehensive suite of
	tests for different types of target-specific export / unexport.
	* tests/scripts/variables/SHELL: Update the comment.

2020-11-29  Dmitry Goncharov  <dgoncharov@users.sf.net>

	[SV 59230] Preserve export settings for target-specific vars
	* src/read.c (record_target_var): Don't overwrite pre-existing export
	flag unless we're changing it.
	* tests/scripts/features/targetvars: Add a test.

2020-11-29  Paul Smith  <psmith@gnu.org>

	[SV 59230] Ensure environment variables are exportable
	When checking for invalid environment variable names we searched the
	entire name string instead of just the first LENGTH chars; this could
	cause us to incorrectly decide the variable was not exportable.

	Dmitry Goncharov <dgoncharov@users.sf.net> found this bug and
	provided a test case and sample fix: I used the test but chose a
	slightly different fix.

	* src/variable.c (define_variable_in_set): check the variable name
	not the input string.
	* tests/scripts/features/targetvars: Ensure environment variable
	values are exported.

2020-11-29  Paul Smith  <psmith@gnu.org>

	* src/default.c (default_variables) [AIX]: [SV 59096] Fix ARFLAGS
	Reported by Dmitry Goncharov <dgoncharov@users.sf.net>, with a patch
	changing the pattern rule for building archives.  I decided to
	change the default value of ARFLAGS on AIX instead.

2020-11-29  Paul Smith  <psmith@gnu.org>

	[SV 35711] Check for special targets earlier
	GNU make must recognize some special targets as they are defined.
	Because of the way targets are defined, we were not recognizing these
	special targets until we were handling the NEXT statement.  However
	that's too late for some special targets such as .POSIX etc. which can
	change the behavior of make during parsing.

	Check for special targets earlier, as soon as we've finished parsing
	the target introduction line (before we've even parsed the recipe).

	* NEWS: Mention the change.
	* src/read.c (check_specials): New function to look for special
	targets.  Move checks from eval() and record_files() to this new
	function.
	(eval): Call check_specials() after we've completed parsing the target
	introduction line.  Move default goal detection to check_specials().
	(record_files): Move handling of .POSIX, .SECONDEXPANSION, and
	.ONESHELL to check_specials().
	* tests/scripts/misc/bs-nl: Remove workaround for late .POSIX issue.
	* tests/scripts/targets/POSIX: Add a comment.

2020-11-29  Paul Smith  <psmith@gnu.org>

	* .ccls: Disable clang compare against static string warning

2020-11-13  Paul Smith  <psmith@gnu.org>

	[SV 59093] Rewrite filter/filter-out to avoid large stack usage
	* src/function.c (func_filter_filterout): Allocate arrays to hold
	pattern and word information rather than creating linked lists on
	the stack.
	* tests/scripts/functions/filter-out: Test large filters.

2020-10-28  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Include): Update behavior for missing included files

2020-07-19  Paul Smith  <psmith@gnu.org>

	* NEWS: [SV 58435] Document minimum C compiler version requirement
	* configure.ac: Require c99 via AC_PROG_CC_C99

2020-07-19  Paul Smith  <psmith@gnu.org>

	[SV 58735] Define the order that makefiles are rebuilt.
	Ensure that makefiles are rebuilt in the order in which make first
	considered them, and document this behavior in the manual.

	* NEWS: Add a note about the new behavior
	* doc/make.text (How make Processes a Makefile): Document it.
	* main.c (main): Inverse the list of makefile goals.
	* read.c (read_all_makefiles): Add default makefiles to the list at
	the front in reverse order, the same way other makefiles are added.
	* tests/scripts/features/include: Add tests to verify rebuild order.

2020-07-10  Paul Smith  <psmith@gnu.org>

	* src/makeint.h: [ARM] [SV 58347] Don't assume ARM is not POSIX

	* src/job.c (unblock_sigs): [!POSIX] [SV 58743]  Fix syntax errors

2020-05-14  Paul Smith  <psmith@gnu.org>

	* NEWS: Fix some tortured grammar.

2020-05-03  Paul Smith  <psmith@gnu.org>

	[SV 57930] Cast char to unsigned char to call ctype functions
	This cast was already done almost everywhere: fix some stragglers.

	* src/load.c (load_file): Cast char to unsigned char.
	* src/misc.c (strcasecmp, strncasecmp): [!POSIX] Ditto.
	* src/dir.c (vms_hash): [VMS] Ditto.
	* src/vms_progname.c (set_program_name): [VMS] Ditto.
	* src/vms_jobs.c (posix_parse_dq): [VMS] Ditto.
	(posix_parse_dollar): [VMS] Ditto.
	(build_vms_cmd): [VMS] Ditto.
	(child_execute_job): [VMS] Ditto.

2020-05-03  Paul Smith  <psmith@gnu.org>

	Convert [ ... ] to test ... in scripting.
	The "[" link may be missing during OS boostrapping.

	* build.sh: Convert "[ ... ]" to "test ..."
	* maintMakefile: Ditto.
	* scripts/copyright-update: Ditto
	* tests/scripts/features/reinvoke: Ditto
	* tests/scripts/features/targetvars: Ditto

2020-05-03  Paul Smith  <psmith@gnu.org>

	* maintMakefile: Clean up output

	* mainMakefile: Check that INSTALL exists in the dist file
	For some reason the INSTALL file symlinked to gnulib was omitted from
	the 4.3 release package: I can't reproduce this but check for it.

2020-05-02  Kevin Buettner  <kevinb@redhat.com>  (tiny change)

	[SV 58232] Disable inheritance of jobserver FDs for recursive make
	A parent make will invoke a sub-make with close-on-exec disabled for
	the jobserver pipe FDs.  Force close-on-exec to be to be enabled in
	the sub-make so the pipe is not always passed to child jobs.

	I have a test case which, when invoked with a suitable -j switch,
	will hang if the recipe inherits the jobserver pipe.  This test case
	was inspired by a real world case in which testing GDB on Fedora
	would hang due to some poorly written test GDB cases having been
	passed the jobserver file descriptors.

	* src/posixos.c (jobserver_parse_auth): Call fd_noinherit() for
	jobserver pipe descriptors.

2020-04-01  Paul Smith  <psmith@gnu.org>

	[SV 57674] Use the system default PATH if $PATH is not set
	When using execvp() if $PATH is not present in the environment
	it will automatically search the system default PATH string.  Emulate
	this by passing the system default PATH to find_in_given_path() if
	we don't find PATH in the environment.

	* src/job.c (child_execute_job): Use confstr(_CS_PATH) if PATH is not
	found.

2020-04-01  Paul Smith  <psmith@gnu.org>

	tests: Simplify customization of %ENV
	Rather than having an %extraENV that is added to the default %ENV
	and resetting %ENV _before_ each test, allow the test setup to
	modify %ENV directly as needed then reset %ENV _after_ each test.

	* tests/test_driver.pl: Remove unused %extraENV.
	(resetENV): Don't add in %extraENV.
	(_run_command): Reset after we run the command rather than before.
	* tests/scripts/features/export: Convert %extraENV to %ENV
	* tests/scripts/features/jobserver: Ditto
	* tests/scripts/features/parallelism: Ditto
	* tests/scripts/features/targetvars: Ditto
	* tests/scripts/functions/eval: Ditto
	* tests/scripts/functions/foreach: Ditto
	* tests/scripts/functions/origin: Ditto
	* tests/scripts/misc/general4: Ditto
	* tests/scripts/options/dash-e: Ditto
	* tests/scripts/targets/POSIX: Ditto
	* tests/scripts/variables/GNUMAKEFLAGS: Ditto
	* tests/scripts/variables/SHELL: Ditto

2020-03-31  Jens Rehsack  <sno@netbsd.org>  (tiny change)

	* src/output.h: [WINDOWS32] [SV 57888] Use gnulib fcntl if available
	If gnulib fcntl is available (for MinGW32) use it rather than our
	homegrown version.

	* src/w32/compat/dirent.c: [SV 57888] Use gnulib opendir on MinGW32

	* src/dir.c (local_stat): [WINDOWS32] Fix buffer-overflow warning.
	[SV 57888] Provide space for the path to use MAXPATHLEN plus nul.

2020-03-31  Paul Smith  <psmith@gnu.org>

	[SV 57896] Change directories before checking jobserver auth
	We want to process -C options as early as possible, before we might
	write informational messages, so that Entering/Leaving messages have
	the correct directory.

	* src/main.c (main): Move code dealing with changing directories
	before parsing of the jobserver auth flag.
	* tests/scripts/features/jobserver: Test the order of enter/leave.

2020-03-31  Paul Smith  <psmith@gnu.org>  (tiny change)

	[SV 57967] Only set APPEND mode for regular files
	APPEND is a permanent mode shared by all users of a file.  If we
	set it on a tty, pipe, etc. it will stay in effect even after make
	exits, which can cause problems.

	Patch provided by 0xef967c36@gmail.com

	* src/output.c (set_append_mode): Check for a regular file.

2020-03-31  Paul Smith  <psmith@gnu.org>

	Obey order of multiple print/no-print directory options
	Previously if --no-print-directory was seen anywhere even once
	(environment, command line, etc.) it would always take precedence
	over any --print-directory option.  Change this so that the last
	seen option (which will be the command line, if present there) takes
	precedence.

	* NEWS: Mark this change in behavior.
	* src/makeint.h (print_directory): A new variable to control printing.
	* src/output.c (output_dump): Use the new variable.
	(output_start): Ditto.
	* src/main.c: Add a new variable print_directory.  Use -1 for
	print_directory_flag so we know of the option was seen or not.  Add a
	new default_print_directory_flag set to -1 to keep options from being
	added.
	(switches): Use flag_off for --no-print-directory, rather than a
	separate inhibit_print_directory_flag.
	(main): If print_directory_flag was set by the user, use that for
	print_directory.  If not, compute the print_directory value based on
	-s, -C, and sub-makes as before.
	* tests/scripts/variables/GNUMAKEFLAGS: -w is not added automatically
	* tests/scripts/options/print-directory: Add tests for overriding
	print-directory options.

2020-03-29  Paul Smith  <psmith@gnu.org>

	* NEWS: Update 4.3 with information on .SILENT / -s

2020-02-29  Eli Zaretskii  <eliz@gnu.org>

	* NEWS: Mention the new tcc support.

2020-02-29  Christian Jullien  <eligis@orange.fr>

	Add support for building with Tiny C for MS-Windows
	* src/config.h.W32.template (HAVE_DIRECT_H, HAVE_STRCASECMP)
	(HAVE_STRNCASECMP, HAVE_UMASK): Add __TINYC__ to MinGW condition.
	(BATCH_MODE_ONLY_SHELL): Make this the default for Tiny C.

	* build_w32.bat: Support building with Tiny C's tcc compiler.

2020-01-20  Paul Smith  <psmith@gnu.org>

	Apply spelling corrections from Fossies spellcheck
	See https://fossies.org/features.html#codespell
	Spelling issues in Git commit messages or lib/* source are not applied.

	* README.OS2.template: Apply spelling corrections.
	* README.VMS: Ditto.
	* src/commands.c: Ditto.
	* src/config.ami.template: Ditto.
	* src/configh.dos.template: Ditto.
	* src/job.c: Ditto.
	* src/job.h: Ditto.
	* src/read.c: Ditto.
	* src/variable.c: Ditto.
	* src/vms_exit.c: Ditto.
	* src/vms_export_symbol.c: Ditto.
	* src/vms_progname.c: Ditto.
	* src/vmsfunctions.c: Ditto.
	* src/vmsjobs.c: Ditto.
	* src/w32/pathstuff.c: Ditto.
	* tests/scripts/variables/automatic: Ditto.
	* tests/test_driver.pl: Ditto.

2020-01-20  Paul Smith  <psmith@gnu.org>

	Update to GNU make 4.3.90
	* NEWS: Add a 4.3.90 section and update Savannah bug URL
	* configure.ac (AC_INIT): Change release to 4.3.90

2020-01-19  Paul Smith  <psmith@gnu.org>

	GNU Make release 4.3
	* NEWS: Update for the release
	* configure.ac: New release number
	* doc/make.texi: New edition number

	* configure.ac (guile): Check for Guile 3.0 installations

	* src/job.c (sh_cmds): [SV 57625] Update builtin shell command list

	Resolve some documentation issues
	* doc/make.texi (Interrupts): [SV 46193] Recommend defensive recipes
	* doc/make.texi: [SV 49262] Clarify interaction of prerequisites and
	non-terminal match-anything rules.

2020-01-19  Paul Smith  <psmith@gnu.org>

	[SV 40657] Reinstate old behavior for suffix rules with prereqs
	POSIX says that suffix rules cannot have prerequisites, but after
	making this change we observed a number of makefiles "in the wild"
	that were relying on this behavior and failed.

	For .POSIX: makefiles, obey POSIX.  Otherwise preserve the old
	behavior.  However, generate a warning so users know this is a
	problem.  In a future version we will change all behavior to be
	POSIX-conforming.

	* NEWS: describe the change
	* src/rule.c (convert_to_pattern): If posix_pedantic don't make a
	pattern rule if prereqs exist.  Otherwise show a warning.
	* tests/scripts/features/suffixrules: Add tests for the new behavior
	including .POSIX vs. non-.POSIX.

2020-01-05  Dmitry Goncharov  <dgoncharov@users.sf.net>

	* tests/test_driver.pl: Enhance error messages

2020-01-04  Paul Smith  <psmith@gnu.org>

	* doc/make.texi: Change the GFDL to an Appendix

	* NEWS: Clarify authorship of new features.

	Enable compilation with C90 compilers
	* configure.ac: Try compiling Guile headers: they don't work with C90.
	* maintMakefile: Simplify config checks via target-specific variables.
	* src/makeint.h: Use ATTRIBUTE rather than defining __attribute__,
	as that causes compile issues with system headers.
	(ENUM_BITFIELD): Don't use enum bitfields in ANSI mode.
	* src/main.c: Use ATTRIBUTE instead of __attribute__.
	* src/job.h: Ditto.
	* src/file.c: Don't define variables inside for loops.
	* src/rule.c: Ditto.
	* src/dep.h (SI): Only use static inline in non-ANSI mode.

2020-01-03  Paul Smith  <psmith@gnu.org>

	* bootstrap: Update to the latest gnulib version

	Release GNU make 4.2.93
	* NEWS: Update the release and date
	* configure.ac: Update the release number

	Update copyright statements for 2020

2020-01-03  Paul Smith  <psmith@gnu.org>

	Support the .EXTRA_PREREQS special variable
	Initial implementation by Christof Warlich <cwarlich@gmx.de>

	* NEWS: Announce the new feature.
	* doc/make.texi (Other Special Variables): Document .EXTRA_PREREQS.
	* src/dep.h (struct dep): New flag to note extra prereq deps.
	* src/filedef.h (expand_extra_prereqs): Declare a function to expand
	the value of .EXTRA_PREREQS.
	* src/file.c (expand_extra_prereqs): Given a struct variable lookup
	of .EXTRA_PREREQS, convert it into a list of deps and for each one
	make sure it has a struct file and has the new flag set.
	(snap_file): A new function invoked by hash_map that will perform
	per-file operations: set up second expansion, intermediate, and also
	.EXTRA_PREREQS.  Manage circular dependencies by ignoring them.
	(snap_deps): Defer per-file operations until the end.  Look up the
	global .EXTRA_PREREQS and pass it along to snap_file for each file.
	* src/implicit.c (struct patdeps): Remember the extra prereqs flag.
	(pattern_search): Transfer extra prereqs flag settings into the
	matched pattern rule.
	* src/rule.h (snap_implicit_rules): Rename count_implicit_rules to
	snap_implicit_rules since we now do more than count.
	* src/rule.c (snap_implicit_rules): As we walk through all the pattern
	rules, add in any global .EXTRA_PREREQS to the dep list.  Ensure we
	take them into account for the max number of prereqs and name length.
	* src/main.c (main): Add extra-prereqs to .FEATURES.
	Call the renamed snap_implicit_rules.
	* tests/scripts/variables/EXTRA_PREREQS: Add tests.

2020-01-03  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/patternrules: Use Windows-compatible quoting

	* tests/test_driver.pl: Compute full path to Perl interpreter

	* tests/scripts/features/exec: Don't use $ENV in the description

	* src/makeint.h: Add a declaration for memrchr()

2019-12-27  Paul Smith  <psmith@gnu.org>

	* NEWS: Remove info about disabled /proc/loadavg usage.

2019-12-27  Paul Smith  <psmith@gnu.org>

	[SV 57022] Avoid posix_spawn which fails asynchronously
	Avoid using posix_spawn implementations that fail asynchronously when
	the spawned program can't be invoked: this means instead of getting
	an error such as "No such file or directory" we get just "Exit 127".

	Original implementation of the configure.ac macro provided by
	Martin Dorey <martin.dorey@hds.com>

	Original implementation of the regression tests provided by
	Dmitry Goncharov <dgoncharov@users.sf.net>

	* configure.ac: Test whether posix_spawn fails asynchronously.  In a
	cross-compilation environment, assume that it does not.  If we detect
	that it does, fall back to fork/exec.
	* tests/scripts/features/exec: Add regression tests for different
	shebang invocation methods.

2019-12-26  Paul Smith  <psmith@gnu.org>

	[SV 56655] Allow pattern expansion to contain spaces
	* src/dep.h: Add a new flag PARSEFS_ONEWORD
	* src/read.c (parse_file_seq): If PARSEFS_ONEWORD is given, treat the
	entire incoming string as a single pattern.
	* src/implicit.c (pattern_search): Pass PARSEFS_ONEWORD when parsing
	patterns for wildcards.
	* tests/scripts/features/patternrules: Add a new test.

2019-12-18  Ben Wijen  <ben@wijen.net>

	* src/misc.c (spin): On WINDOWS32 use Sleep() instead of sleep()

	* bootstrap.bat: Fix typo in batch file name

2019-12-18  Paul Smith  <psmith@gnu.org>

	* src/config.h.W32.template: [SV 57152] MinGW32 doesn't support d_type

2019-12-18  Jouke Witteveen  <j.witteveen@gmail.com>

	[SV 54161] Fix second expansion of $* for paths
	If the stem matches a path containing a directory not just a
	filename, make sure the second expansion of $* in the
	prerequisites matches $* in the recipe.  This requires using
	$(*F) when replacing % in the first expansion to preserve the
	simple filename.

	* src/implicit.c (pattern_search): If lastslash is set prepend
	the directory onto the stem.  Then use $(*F) when expanding %.
	* tests/scripts/features/se_implicit: Add a test case

2019-12-17  Jouke Witteveen  <j.witteveen@gmail.com>

	* src/implicit.c (pattern_search): Set lastslash correctly
	If filename contained multiple slashes lastslash is wrongly set to 0.
	* configure.ac: Check for the GNU memrchr() extension function.
	* src/misc.c (memrchr): Supply memrchr() if not available.

	* src/implicit.c (pattern-search): Remove unneeded 'dir' variable

2019-12-17  Paul Smith  <psmith@gnu.org>

	* Makefile.am: Build lzip package instead of bzip2
	* README.git: Mention changed requirements.

	* src/job.c (load_too_high): Disable Linux /proc/loadavg for now
	This new feature has a problem: if you provide a load which is
	larger than the number of cores then it will always run every job.
	Before we can enable it we need to at the least learn how to clamp
	this value to the number of cores.  To experiment with it, set
	PROC_FD_INIT to -2 in job.c to re-enable the feature.

	* tests/run_make_tests.pl (set_more_defaults): Fix typo

2019-12-16  Paul Smith  <psmith@gnu.org>

	* tests/run_make_tests.pl (subst_make_string): Force use of /
	On Windows the path to the helper tool will contain '\': this will
	fail if recipes are run with a POSIX shell.  Convert '\' to '/'
	on Windows.  While here, escape any spaces in the path as well.

	Rename jhelp.pl to thelp.pl and make it a generic test helper.
	* tests/thelp.pl: Rename from tests/jhelp.pl.
	(op): Use names instead of options for the operations.
	(op): Add new operations for sleep, mkdir, and rm.
	(op): Enhance wait to time out
	* tests/run_make_tests.pl: Add a new #HELPER# replacement
	(subst_make_string): Use fully-qualified path to thelp.pl
	* tests/scripts/features/parallelism: Update to use thelp.pl
	and the new named operations.  Use thelp.pl sleep instead of
	system-specific sleep commands.
	* tests/scripts/features/output-sync: Update to use thelp.pl
	instead of complex shell scripts.
	* Makefile.am: Distribute tests/thelp.pl instead of tests/jhelp.pl

2019-10-10  Paul Eggert  <eggert@cs.ucla.edu>

	Port functions/shell test to Solaris 10
	* tests/scripts/functions/shell: Port exit-status calculation
	to Solaris 10 with Perl 5.8.4.

2019-10-08  Paul Smith  <psmith@gnu.org>

	Release GNU make 4.2.92
	* NEWS: Update the release and date
	* configure.ac: Update the release number

2019-10-06  Paul Smith  <psmith@gnu.org>

	* doc/make.text (Reading Makefiles): Rewrite to be more clear.

2019-10-05  Paul Smith  <psmith@gnu.org>

	* Makefile.am (check-regression): Use PERLFLAGS when running Perl
	* maintMakefile: Set PERLFLAGS to enable warnings.
	* tests/run_make_tests.pl: Clean up issues pointed out by perl -w.

	* tests/scripts/functions/wildcard: Skip slash tests for local glob.

	tests: Convert %CONFIG_FLAGS to get_config()
	* tests/config-flags.pm.W32: Create a predefined Windows file.
	* Makefile.am (test_FILES): Add it to the distribution.
	* build_w32.bat: Install tests/config-flags.pm if not existing.
	* tests/run_make_tests.pl (get_config): Create new function.
	* tests/scripts/features/archives: Call get_config() rather than
	using %CONFIG_FLAGS directly.
	* tests/scripts/features/load: Ditto.
	* tests/scripts/features/loadapi: Ditto.
	* tests/scripts/functions/wildcard: Ditto.

	* src/hash.c (jhash_string): Don't read past end of string.
	Original patch from Dmitry Goncharov <dgoncharov@users.sf.net>.

	* tests/run_make_tests.pl (valid_option): Add missing File::Spec

2019-09-23  Paul Smith  <psmith@gnu.org>

	* src/function.c (func_realpath) [AIX]: Remove trailing slashes.

2019-09-22  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/vpathplus: Fix output for big-endian systems.
	Our hashing algorithm gives different ordering on LE vs BE systems.
	Patch from Dmitry Goncharov <dgoncharov@users.sf.net>.

2019-09-22  Florian Weimer  <fweimer@redhat.com>  (tiny change)

	* configure.ac (HAVE_GETTIMEOFDAY): Avoid undeclared exit function.

2019-09-22  Paul Smith  <psmith@gnu.org>

	* test/test_driver.el (_run_with_timeout): Show error message.

	* job.c (child_error): Modify error message string.
	This reverts commit 6264deece3bb77798240a906ceed79097adbcf48.
	Further investigation discovers that the real issue is that
	GNU Emacs compile mode doesn't have a matching regex for GNU
	make error messages generated when targets fail.  I submitted
	a patch to GNU Emacs adding a matcher for compile mode.

2019-09-21  Paul Smith  <psmith@gnu.org>

	* tests: Convert from File::Spec::Functions to File::Spec.
	Users report the Functions version doesn't work correctly for some
	older versions of Perl.

	* tests/scripts/function/guile: Valgrind doesn't work with Guile.

	* src/job.c (child_execute_job): Allocate space for argv NULL.

2019-09-21  Paul Smith  <psmith@gnu.org>

	[SV 56918] Compute job slots properly on failing command
	Ensure we properly reduce job_slots_used if a command fails because
	it doesn't exist/can't be started.

	* src/job.h (struct child): Add a field jobslot to be set when using
	a job slot.
	* src/job.c (start_waiting_job): Remember if we are using a job slot.
	(reap_children): Reduce number of job slots used by jobslot.

2019-09-21  Paul Smith  <psmith@gnu.org>

	* src/arscan.c (ar_scan): Restrict length for sscanf of ar_mode.

	* tests/scripts/functions/shell: Detect correct SHELLSTATUS code.

	* tests/run_make_test.pl: Fix support for valgrind.
	Change the variable holding the make command to be a list that can
	hold extra commands and options, not just a string.

	* tests/run_make_tests.pl (find_prog): Fix syntax error.

2019-09-16  Paul Smith  <psmith@gnu.org>

	* NEWS: Update date and clarify -l change.

	* tests/run_make_tests.pl: Create $scriptsuffix for Windows/VMS.
	* tests/scripts/features/targetvars: Add a suffix to scripts.
	* tests/scripts/misc/general4: Ditto.

2019-09-16  Paul Smith  <psmith@gnu.org>

	Refresh the test suite framework implementation.
	Go through both run_make_tests.pl and test_driver.pl and slightly
	modernize the Perl and clean up indentation etc.  Fix a number of
	warnings in the test scripts detected by running with -w.

	* tests/test_driver.pl: Move make error string detection out of the
	base test driver.
	(run_all_tests): Ensure that we always look for tests in the cwd.
	* tests/run_make_tests.pl: Use File::Spec for path manipulations.
	Correctly use setlocale() when detecting error strings.
	Get configuration from the config-flags.pm file not config.status.
	* tests/scripts/features/archives: Use new $cwddir variable.
	* tests/scripts/features/reinvoke: Add missing semicolon.
	* tests/scripts/features/vpath2: Avoid non-existent variable.
	* tests/scripts/functions/foreach: Escape variables.
	* tests/scripts/misc/bs-nl: Remove non-existing \v escape sequence.
	* tests/scripts/misc/general4: Use handy create_file().
	* tests/scripts/options/dash-C: Use Cwd/$cwddir.
	* tests/scripts/options/dash-I: Use subst_make_string() and #PWD#.
	* tests/scripts/options/symlinks: Use File::Spec.
	* tests/scripts/targets/DEFAULT: Use create_file and run_make_test.
	* tests/scripts/variables/CURDIR: Use run_make_test.
	* tests/scripts/variables/automatic: Remove extraneous "\".
	* tests/scripts/vms/library: Remove extra "my" and extraneous "\".

2019-09-16  Paul Smith  <psmith@gnu.org>

	* tests/config-flags.pm.in: Add USE_SYSTEM_GLOB.
	* tests/config_flags_pm.com [VMS]: Ditto.

	* README.git: [SV 56895] Provide more info about "maintainer mode".
	* src/read.c (get_next_mword) [HAVE_DOS_PATHS]: Don't fall through to
	parsing variable references if we find a drivespec in a word!

	* tests/test_driver.pl: Remember error for "running" a directory.
	* tests/scripts/features/errors: Check errors "running" a directory.

	* src/job.c (child_execute_job): Use errno from find_in_given_path().
	* tests/test_driver.pl: Determine non-executable error message.
	* tests/scripts/features/errors: Use the local non-executable error.

	* src/job.c (child_execute_job): Use newer gnulib findprog version.

2019-09-10  Eli Zaretskii  <eliz@gnu.org>

	Revert "[SV 56449] (Windows) Use slow path if '%' appears in the command"
	This reverts commit 38e96eadea6e2cd42a0f414959bac327de9f468a.
	Per discussion on Savannah, the modified behavior matches
	the way % is handled in batch files, but not in cmd command
	lines.  And since Make mostly tries to emulate the command
	line, the new behavior is unexpected and backward-incompatible.

2019-09-09  Paul Smith  <psmith@gnu.org>

	Rework the creation of build.sh so it's not a template.
	* build.sh: Rename from build.template.  Get the list of objects
	from the Makefile.  Move configure-replaced variables ...
	* build.cfg.in: to this new .in file.
	* configure.ac: Remove special handling of build.sh.in and add
	build.cfg as a generated file.
	* Makefile.am (EXTRA_DIST): Remove build.sh.in and add build.sh
	and build.cfg.in for build.sh.in.
	* maintMakefile: Remove handling for build.template.  Treat
	build.sh as a source file, not a generated file.
	* .gitignore: Ignore generated build.cfg file.

2019-09-08  Paul Smith  <psmith@gnu.org>

	* gl/modules/make-glob: Move local glob configure.ac to here
	* configure.ac: from here.

2019-09-08  Paul Smith  <psmith@gnu.org>

	[SV 56834] Support local PATH search with posix_spawnp
	When using exec we install the child's environment before invoking
	execlp(), so commands are found on the child's PATH.  posix_spawnp
	searches on the parent's PATH, which we don't want.

	Import gnulib's findprog-in module and use it to search the child's
	PATH, then use posix_spawn() to run it.

	Also, posix_spawn() does not fall back to trying sh on ENOEXEC, as
	execlp() does, so implement that as well.

	* bootstrap.conf: Add the findprog-in gnulib module
	* src/job.c: Include findprog.h if we're using posix_spawn.
	(start_job_command): Remove the handling of child->cmd_name,
	(child_execute_job): and add it here.  Look up the command to be
	run in the child's path and invoke it if found.  If it fails with
	ENOEXEC then retry it as an argument to the default shell.
	* tests/scripts/misc/general4: Test makefile PATH assignments.
	* tests/scripts/features/targetvars: Ditto, for target variables.

2019-09-07  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Recipe Execution): Correct example to use $(<[DF])

	* configure.ac: Check whether struct dirent has a d_type field
	* src/dir.c (dir_contents_file_exists_p): Use the autoconf macro
	HAVE_STRUCT_DIRENT_D_TYPE rather than relying on the GNU libc-
	specific _DIRENT_HAVE_D_TYPE.
	* lib/glob.c: Set HAVE_D_TYPE if HAVE_STRUCT_DIRENT_D_TYPE.

	* src/config.h.W32.template [W32]: Add support for dirent.d_type
	* src/w32/include/dirent.h: Add DT_* values for dirent.d_type
	(struct dirent): Add d_type
	* src/w32/compat/durent.c (readdir): Set dirent.d_type based on
	Windows file attributes.

	* src/makeint.h: Add typedef for mode_t if !HAVE_UMASK

	* build.template: Rewrite to allow gnulib support.

	* doc/make.texi: Clarify that the jobserver pipe is "blocking"

2019-09-07  Paul Smith  <psmith@gnu.org>

	Align child_execute_job among different ports
	Create a struct childbase which is the basics of struct child needed
	to invoke child_execute_job(), and can be cast back and forth to a
	struct child.  Ensure all implementations of child_execute_job() take
	the same arguments.

	* src/job.h (CHILDBASE): Create a macro to hold the base parts.
	(struct childbase): A structure containing CHILDBASE.
	(struct child): Use CHILDBASE as the initial part of child.
	[VMS]: Remove declaration of VMS version of child_execute_job.
	* src/job.c (start_job_command): Use new child_execute_job() call.
	(child_execute_job) [__EMX__]: Implement new calling signature.
	(child_execute_job): Implement new calling signature.
	* src/main.c (main) [__EMX__]: Use new child_execute_job() call.
	* src/function.c (func_shell_base): Use new child_execute_job() call.
	* src/vmsjobs.c (vmsHandleChildTerm): Accept struct childbase.
	* src/vmsjobs.c (child_execute_job): Implement new calling signature.
	Modify the return value to be pid_t, not a boolean, and return the
	PID rather than setting it in the child.  This is OK because our only
	caller immediately reset PID to -1 anyway if we return 0.

2019-09-07  Paul Smith  <psmith@gnu.org>

	* doc/make.tex (Substitution Refs): Clarify patsubst relationship.

	* src/job.c (start_job_command) [VMS]: Correct VMS comment.

2019-09-07  Paul Smith  <psmith@gnu.org>

	Show useful errors when posix_spawn() doesn't do so
	The posix_spawn() function may not detect that the command to run is
	invalid when it's invoked.  Instead, it will run then exit with
	error code 127.  If that happens do our best to present the user
	with a useful error message.

	* src/job.h (struct child): Add cmd_name to hold the command we ran.
	* src/job.c (start_job_command): On success, remember the cmd_name.
	(reap_children): On exit 127, stat cmd_name and show a useful error.
	(free_child): Free cmd_name.

2019-09-07  Paul Smith  <psmith@gnu.org>

	* README.git: Describe GCC and GNU make requirements
	* maintMakefile: Put custom C flags into a separate variable
	so they can be overridden more easily on the command line.

	* tests/scripts/features/archives: Fix expected long ar name output.

	* tetss/run_make_test.pl: Avoid 'sh -c' for Windows portability.

	Update to GNU make release candidate 4.2.91

	* tests/scripts/functions/wildcard: Skip dangling symlink test.
	The built-in glob implementation does not correctly handle dangling
	symlinks.  This needs to be fixed by switching to the latest glob
	implementation from gnulib but that's a big job: for now avoid the
	test if we know it will fail.

	* maintMakefile: Use check-local when testing build.sh.
	Running 'make check' will rebuild 'make' so we're not testing the
	build.sh-generated make binary.

2019-09-07  Paul Smith  <psmith@gnu.org>

	Don't reset stack size when using posix_spawn()
	There's no way to run setrlimit() from posix_spawn() so we can't reset
	the stack limit in children; thus, don't change it in the parent.

	* src/makeint.h (SET_STACK_SIZE): Don't set this when HAVE_POSIX_SPAWN.
	* src/job.c (child_execute_job): Remove useless comment.

2019-09-07  Paul Smith  <psmith@gnu.org>

	* configure.ac: Remove redundant getloadavg gnulib support

	* src/dir.c (dir_setup_glob): Initialize unused gl_offs.
	* tests/scripts/functions/wildcard: Add trailing slash tests.
	Initial changes by Dmitry Goncharov <dgoncharov@users.sf.net>

2019-09-02  Paul Eggert  <eggert@cs.ucla.edu>

	Pacify Oracle Studio c99
	* src/dep.h (DEP):
	* src/function.c (struct function_table_entry):
	Use unsigned int, not unsigned short.  Without this patch, c99
	complains ‘warning: nonportable bit-field type’.

	Port grouped_targets test to Solaris 10
	* tests/scripts/features/grouped_targets: Use ‘printf ''’
	instead of ‘echo -n’, as POSIX says the latter is not portable.

	Remove useless code in eval
	* src/read.c (eval): Remove useless code.  Without this patch,
	Oracle Studio 12.6 complains ‘"src/read.c", line 1405: warning:
	loop not entered at top’.

	Pacify Oracle Studio 12.6 in init_switches
	* src/main.c (init_switches): Use a cast to convert char const *
	to char *.  Without this patch, the compiler complains
	‘"src/main.c", line 2643: warning: assignment type mismatch:
	pointer to char "=" pointer to const char’.

	Pacify Oracle Studio 12.6
	* src/arscan.c [VMS]: Use ‘#if !defined LBR$_HDRTRUNC’ instead
	of ‘#ifndef LBR$_HDRTRUNC’ to pacify Oracle Studio 12.6, which
	looks inside unused #if branches for preprocessor syntax errors.
	Without this patch it complains ‘"src/arscan.c", line 43: warning:
	tokens ignored at end of directive line’.

2019-09-02  Paul Smith  <psmith@gnu.org>

	* NEWS: Fix incorrect notes.

	* src/read.c (parse_file_seq): [SV 52076] Don't reverse glob() results.

2019-08-28  Eli Zaretskii  <eliz@gnu.org>

	Fix MS-Windows MinGW build
	* src/w32/subproc/sub_proc.c (process_wait_for_multiple_objects):
	Fix format specifier for GetLastError's value.

	* src/job.c (reap_children): Define the 'remote_status_lose' label
	only for Posix platforms, to avoid compiler warning.

	* build_w32.bat (LNKOUT): New variable, using forward slashes.
	Use forward slashes in calls to :Compile, so that linking with GNU
	ld works.

	* src/makeint.h [!HAVE_UMASK]: Prototype for 'umask'.
	(UMASK, MODE_T): Don't define.

	* src/misc.c (get_tmpfile): Don't call UMASK, call umask, to
	avoid compilation warning on !HAVE_UMASK platforms.
	* src/output.c (output_tmpfd): Likewise.

	* src/misc.c (umask) [!HAVE_UMASK]: New no-op function.

	* src/config.h.W32.template (__USE_MINGW_ANSI_STDIO)
	[__MINGW32__]: Define to 1, to force Make use ANSI-compatible
	stdio functions, which also support the non-standard 'Id' and 'Ix'
	specifiers.
	(HAVE_UMASK) [__MINGW32__]: Define to 1.

	* src/arscan.c (ar_member_touch): Type-cast argument of strlen to
	avoid compiler warnings.

2019-08-26  Paul Smith  <psmith@gnu.org>

	* NEWS: Update for pre-release

2019-08-26  Paul Smith  <psmith@gnu.org>

	Update maintainer mode to support debug wait points.
	Make a spin() method available when compiled in maintainer mode.
	If a file exists in the working directory with a specific name,
	make will sleep until the file is deleted.

	Ensure that maintainer mode is enabled on Windows, using the same
	algorithm we use on POSIX / autoconf systems.

	* build_w32.bat: If maintMakefile exists, enable maintainer mode.
	* src/main.c (main): Replace Windows-only suspend flag with spin().
	* src/makeint.h: A SPIN() macro calls spin() in maintainer mode.
	* src/misc.c (spin): If a spin file exists sleep until it's deleted.

2019-08-26  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/archives: [SV 54395] Support non-GNU ar.

	* tests/scripts/misc/general3: Add more tests for SHELL/.SHELLFLAGS

2019-08-25  Paul Smith  <psmith@gnu.org>

	* src/job.c (construct_command_argv): Remove unused VMS code

	* src/job.c (child_execute_job): Set pid to -1 on posix_spawn failure.

2019-08-24  Paul Smith  <psmith@gnu.org>

	* bootstrap: Update from latest gnulib version

	* scripts/copyright-update: Use git ls-files for controlled files

	* po/LINGUAS: Add a translation for Bulgarian.

2019-07-14  Christian Eggers  <ceggers@arri.de>  (tiny change)

	[SV 56449] (Windows) Use slow path if '%' appears in the command
	* src/job.c (sh_chars_dos): Add '%' as a special character
	* src/job.c (construct_command_argv_internal): Check for '%' in quotes

	For the windows version of make, a recipe line cannot be executed
	diretly by make (without a shell) if a '%' character is present. This
	character starts a cmd.exe escape sequence.

2019-07-14  Paul Smith  <psmith@gnu.org>

	* src/read.c (parse_file_seq): Update comments.

2019-07-13  Mike Haboustak  <haboustak@gmail.com>  (tiny change)

	[SV 28456] Don't override $< when no default rule has been defined
	The check for matching a file's command to the default rule's command
	does not account for null. If no .DEFAULT is defined a rule with no
	recipe has it's $< variable set to the value of $@. This breaks second
	expansion, particularly when used with pattern rules.

	* src/commands.c [set_file_variables]: Check that cmds is set
	* tests/scripts/features/se_explicit: Test case
	* tests/scripts/features/se_implicit: Test case

2019-07-13  Paul Smith  <psmith@gnu.org>

	Switch to the gnulib version of strerror()
	* bootstrap.conf: Add strerror module
	* configure.ac: Remove strerror check
	* src/misc.c: Remove local strerror() implementation
	* src/config.ami.template: Remove HAVE_STRERROR
	* src/config.h-vms.template: Ditto.
	* src/config.h.W32.template: Ditto.

2019-05-19  Paul Smith  <psmith@gnu.org>

	* doc/make.texi: [SV 51974] Clarify makefile parsing operations.

	* doc/make.texi: [SV 54116] Document whitespace removal trick.
	Discovered and explained by Michael Henry <gnu@drmikehenry.com>
	* tests/scripts/variables/flavors: Add a test to preserve the behavior.

2019-05-19  Paul Smith  <psmith@gnu.org>

	[SV 46013] Allow recursive variable overrides from Makefiles
	Ensure that variable overrides are passed to recursive make instances
	even if no overrides were provided on the command line.
	Fix suggested by Rici Lake <ricilake@gmail.com>

	* src/main.c (define_makeflags): Add overrides without respect to the
	value of command_variables.
	* tests/scripts/features/recursion: Add a test.

2019-05-19  Paul Smith  <psmith@gnu.org>

	Update developer customizations
	* .ccls: Remove -std=c99: it disables __attribute__ causing warnings.
	* .dir-locals.el: Force the C coding style to "gnu".
	* make-gdb.py: Add GDB macros for pretty-printing GNU make structs.
	* scripts/copyright-update: Use GNULIB_SRCDIR to find update-copyright.

2019-05-19  Paul Smith  <psmith@gnu.org>

	[SV 54549] Don't free used set_lists during merge
	When merging the variable_set_lists for two targets it could be
	that the "from" set list is a subset of the "to" set list: check
	for this situation to avoid freeing used memory.

	* src/variable.c (merge_variable_set_lists): Walk the "to" list and
	if the "from" list is contained in it, nothing to do.
	* tests/scripts/features/se_explicit: Add a test.

2019-05-19  Paul Smith  <psmith@gnu.org>

	* src/hash.c (jash_string): [SV 54980] Avoid ASAN error

2019-05-19  Paul Smith  <psmith@gnu.org>

	[SV 54740] Ensure .SILENT settings do not leak into sub-makes
	Create a new variable run_silent to hold the current instance's global
	silence setting, allowing silent_flag to represent only whether the -s
	option was provided on the command line.

	* src/makeint.h: Change silent_flag variable to run_silent.
	* src/job.c: Ditto.
	* src/remake.c: Ditto.
	* src/file.c: Ditto.
	* src/main.c: Add a new global variable run_silent.
	(decode_switches): After switches are decoded, initialize run_silent.
	* tests/scripts/targets/SILENT: Add a test for recursive behavior.

2019-05-19  Paul Smith  <psmith@gnu.org>

	Update copyright statements for 2019

2019-05-12  Kaz Kylheku  <kaz@kylheku.com>

	[SV 8297] Implement "grouped targets" for explicit rules.
	This patch allows "grouped targets" using the &: syntax:

	  tgt1 tgt2 ... tgtn &: pre1 pre2 ...
	        recipe

	When the &: separator is used (in single or double colon forms), all
	the targets are understood to be built by a single invocation of the
	recipe.  This is accomplished by piggy-backing on the already-existing
	pattern rule feature, using the file's "also_make" list.

	* NEWS: Add information about grouped targets.
	* doc/make.texi (Multiple Targets): Add information on grouped targets.
	(Pattern Intro): Refer to the new section to discuss multiple patterns.
	* src/main.c (main): Add "grouped-targets" to .FEATURES
	* src/read.c (make_word_type): Add new types for &: and &::.
	(eval): Recognize the &: and &:: separator and remember when used.
	(record_files): Accept an indicator of whether the rule is grouped.
	If so, update also_make for each file to depend on the other files.
	(get_next_mword): Recognize the &: and &:: word types.
	* tests/scripts/features/grouped_targets: New test script.
	* AUTHORS: Add Kaz Kylheku

2019-05-12  Paul Smith  <psmith@gnu.org>

	* variable.c (define_variable_in_set): Clear new structs

	* po/LINGUAS: Add Portuguese translation

	Add developer customizations
	* .ccls: Configure the ccls LSP server
	* .dir-locals.el: Reset some parameters for ccls and lsp-mode
	* .gitignore: Update for GTAGS and ccls
	* maintMakefile: Don't search hidden directories for sources

2018-09-16  Paul Smith  <psmith@gnu.org>

	* src/arscan.c (ar_member_touch): [SV 54533] Stop \0 in archive headers

	Change output_write() to writebuf(), add readbuf() helper.
	* src/misc.c (writebuf, readbuf): Create helper functions that will
	reliably write a buffer to a file descriptor in the face of EINTR
	causing short writes, and read from a file descriptor into a buffer
	in the face of EINTR causing short reads.
	* src/makeint.h: Declare these functions.
	* src/output.c: Remove output_write() and replace with writebuf().
	(_outputs, out_of_memory): Call writebuf(), not output_write().
	* src/arscan.c (ar_scan): Call readbuf() instead of read(2).
	(ar_member_touch): Remove duplicate header write, call writebuf()
	instead of output_write(), and readbuf() instead of read(2).

2018-09-15  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Remaking Makefiles): [SV 52273] Note MAKE_RESTARTS

	* src/main.c (main): Set jobserver permissions before re-execing
	Fixes an issue seen in the Linux kernel build system, reported by
	Masahiro Yamada <yamada.masahiro@socionext.com>.  Fix suggested
	on the bug-make mailing list by Mike Shal <marfey@gmail.com>.
	* tests/scripts/features/parallelism: Add a test to verify this.

	* doc/make.texi: [SV 48970] Clarify the value of $?

	* doc/make.text: [SV 54360] Weaken "obsolete" language in the manual.
	There's no need to frighten users away from capabilities which are
	perfectly reasonable and definitely not going away, by calling them
	obsolete or discouraged in the manual.

	[SV 40657] Don't create pattern rules for suffix rules with deps.
	* NEWS: Update with a backward-compatibility warning.
	* src/rule.c (convert_to_pattern): If a suffix rule has dependencies,
	do not create a pattern rule for it.  According to the manual suffix
	rules with prerequisites are treated as normal targets.
	* tests/scrips/features/suffixrules: Create some regression tests for
	.SUFFIXES and suffix rules.

2018-08-04  Paul Smith  <psmith@gnu.org>

	* NEWS: Update for the latest changes.

2018-08-04  Paul Smith  <psmith@gnu.org>

	[SV 54233] Preserve higher command_state values on also_make targets.
	If multiple pattern rules have the same pattern as also-make targets
	and we attempt to run them at the same time, we might downgrade the
	command state from 'running' to 'deps_running'; this will prevent
	that also_make from being considered complete causing make to wait
	forever for it to finish.

	Ensure that set_command_state never downgrades the state of a target.

	* src/file.c (set_command_state): Don't downgrade command_state.
	* src/filedef.h (struct file): Document the order prerequisite.
	* test/scripts/features/patternrules: Test the behavior.

2018-08-04  Paul Smith  <psmith@gnu.org>

	* src/job.c (reap_children): Fix inverted win/lose message.

	* tests/scripts/functions/wildcard: [SV 52018] Test dangling symlink.

2018-08-04  Bernhard M. Wiedemann  <bwiedemann@suse.de>

	* src/read.c (parse_file_seq): [SV 52076] Sort wildcard results.

2018-08-04  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/archives: [SV 54395] Test long archive names.

2018-08-04  Ben Hutchings  <ben@decadent.org.uk>

	* src/arscan.c (ar_scan): [SV 54395] Allow long names in archives.
	Commit bc9d72beb0cb "Resolve issues discovered by static code
	analysis." added range checks on archive member name length.  However,
	on non-AIX systems it also checked BSD-style long names against the
	short name limits and and checked the *offset* for GNU-style long
	names against the short name limits.  This caused valid long names to
	be rejected.

	* Record the size of the GNU name map and validate offsets against it
	* Ensure that the last entry in the name map is null-terminated
	* Apply a maximum length of INT_MAX for element sizes

	Reported-by: Philipp Wolski <philipp.wolski@kisters.de>

2018-08-04  Paul Smith  <psmith@gnu.org>

	* lib/glob.c (glob_in_dir): [SV 53465] Allow symlinks to directories.
	Fix from Rich Felker <bugdal@aerifal.cx> on the musl mailing list.
	* tests/scripts/functions/wildcard: Create a regression test for this.

	* configure.ac: Add --disable-posix-spawn option
	* maintMakefile: Add a test for the option
	* src/job.c: Change HAVE_* preprocessor checks to USE_POSIX_SPAWN

	* src/job.c (child_execute_job): Clean up posix_spawn invocation

2018-08-04  Aron Barath  <baratharon@caesar.elte.hu>

	* job.c (child_execute_job): Prefer posix_spawn() over fork()/exec()

2018-08-04  Paul Smith  <psmith@gnu.org>

	Clean up errors for invalid commands and add regression tests.
	* src/function.c (func_shell_base): Use error() instead of recreating
	the error output.
	* src/job.c (exec_command): Show more standard error messages.
	* src/load.c (unload_file): Fix whitespace in the error message.
	* tests/scripts/features/errors: Add tests for starting non-
	existent commands and new error message formats.
	* tests/scripts/features/output-sync: New error message formats.
	* tests/scripts/functions/shell: Ditto.

2018-08-04  Paul Smith  <psmith@gnu.org>

	Queue failed fork() (etc.) to be handled like any other failed job.
	If we failed to fork() we were essentially exiting make immediately
	without respect to ignore flags, etc.  On one hand that makes sense
	because if you can't fork you're in real trouble, but it doesn't
	work so well on systems where we don't fork at all.  Instead, treat
	a fork error like any other error by delaying the handling until
	the next call to reap_children().  Any child with a PID of -1 is
	considered to have died before starting so check these first without
	waiting for them.

	* src/commands.c (fatal_error_signal): Don't kill children that
	never started.
	* src/function.c (func_shell_base): Handle cleanup properly if the
	child doesn't start.
	* src/job.c (reap_children): Check for children that died before
	starting and handle them without waiting for the PID.
	(start_job_command): Free memory when the child doesn't start.
	(start_waiting_job): Don't manage children who never started.
	(child_execute_job): If the fork fails return PID -1.
	* src/vmsjobs.c: Check for children that never started.
	* tests/run_make_tests.pl: Parse config.status to get all options.

2018-08-02  Aron Barath  <baratharon@caesar.elte.hu>

	* configure.ac: Check for posix_spawnattr_setsigmask

	* configure.ac: Check for spawn.h and posix_spawn()

	* src/makeint.h: Use pid_t to store PIDs, of int.
	* src/commands.c (getpid): Ditto.
	* src/job.h (*): Ditto.
	* src/job.c (*): Ditto.
	* src/main.c (main): Ditto.
	* src/remote-cstms.c (start_remote_job): Ditto.
	* src/remote-stub.c (start_remote_job): Ditto.

2018-08-02  spagoveanu@gmail.com  <spagoveanu@gmail.com>  (tiny change)

	* src/dir.c: Preserve glob d_type field
	When using GNU make on a system with glibc glob a pattern ending in
	a slash is also matching regular files, but only in subdirectories:

	$ mkdir -p dir/subdir
	$ cd dir
	$ touch file1 subdir/file2
	$ echo 'test:; @echo $(wildcard */ */*/)' | make -f -
	subdir/ subdir/file2
	$ echo 'test: */ */*/; @echo "$?" != */ */*/' | make -f -
	subdir/ subdir/file2 != subdir/ */*/

	It happens because in the gl->gl_readdir callback supplied to glob(),
	dirent->d_type is set to DT_UNKNOWN, and the glob() implementation
	in glibc assumes that such a directory entry *cannot* possibly be a
	regular file.

	Pass the actual d_type down to glob(); this is the right thing to do
	even if glibc is fixed, because it saves an extra stat() syscall for
	each dirent.

2018-08-02  Paul Smith  <psmith@gnu.org>

	* src/read.c(unescape_char): Use C comments not C++ comments.
	* src/posixos.c(set_blocking): Ditto.
	* src/w32/subproc/sub_proc.c(process_init): Ditto

	Enhance the Basic.mk environment to work with Gnulib
	* maintMakefile: Omit generated headers from Basic.mk prerequisites.
	* Basic.mk.template: Rework commands to use with $(call ...) macros.
	* mk/Amiga.mk: Ditto.
	* mk/VMS.mk: Ditto.
	* mk/Windows32.mk: Ditto, plus P2W to convert POSIX to Windows paths.
	* mk/msdosdjgpp.mk: Ditto.

2018-07-02  Paul Smith  <psmith@gnu.org>

	Resolve most of the Windows Visual Studio warnings.
	* Convert integer types to size_t where necessary.
	* Align other integral types to avoid casts and type warnings.

2018-07-02  Paul Smith  <psmith@nuodb.com>

	Update regression tests for Windows.
	* tests/scripts/features/jobserver: Windows doesn't use pipes
	* tests/scripts/functions/shell: Don't test kill -2 on Windows
	* tests/scripts/misc/bs-nl: Windows doesn't handle single quotes
	* tests/scripts/misc/general3: Ditto.

	* maintMakefile: Preserve comments during compilation

	* function.c(abspath): Use memcpy() to avoid GCC 8.1 warnings

2018-07-02  Paul Smith  <psmith@nuodb.com>

	Convert GNU make to use the gnulib portability library
	Move content from glob/* and config/* into standard GNU directory
	locations lib/* and m4/*.

	Install the gnulib bootstrap script and its configuration file, and
	create a bootstrap.bat file for Windows.  Update the README.git file
	with new requirements and instructions for building from Git.

	At this point we only install the alloca, getloadavg, and FDL modules
	from gnulib.  We keep our old glob/fnmatch implementation since the
	gnulib versions require significant amounts of infrastructure which
	doesn't exist on Windows yet.  Further work is required here.

	Due to a problem with gnulib's version of getloadavg, we need to bump
	the minimum required version of automake to 1.16.1 unfortunately.

	* README.git: Update instructions
	* NEWS: Move developer news to a separate section
	* configure.ac: Update for use with gnulib modules

	* bootstrap: Bootstrap from Git workspace (import from gnulib)
	* bootstrap.conf: Bootstrap configuration for GNU make
	* bootstrap.bat: Bootstrap from Git workspace for Windows
	* gl/modules/make-glob: Support our local fnmatch/glob implementation

	* config/acinclude.m4: Move to m4/
	* config/dospaths.m4: Move to m4/
	* glob/fnmatch.c: Move to lib/
	* glob/fnmatch.h.in: Move to lib/
	* glob/glob.c: Move to lib/
	* glob/glob.h.in: Move to lib/

	* Makefile.am: Update for new directories
	* build.template: Update for new directories
	* build_w32.bat: Update for new directories
	* builddos.bat: Update for new directories
	* maintMakefile: Update for new directories
	* makefile.com: Update for new directories
	* mk/Amiga.mk: Update for new directories
	* mk/Posix.mk.in: Update for new directories
	* mk/VMS.mk: Update for new directories
	* mk/Windows32.mk: Update for new directories
	* mk/msdosdjgpp.mk: Update for new directories

	* po/LINGUAS: One language per line (needed by gnulib)

	* INSTALL: Remove (obtained from gnulib)
	* src/alloca.c: Remove (obtained from gnulib)
	* src/getloadavg.c: Remove (obtained from gnulib)
	* po/Makevars: Remove (created by bootstrap)
	* config/*: Remove leftover files
	* glob/*: Remove leftover files

2018-07-01  Paul Smith  <psmith@nuodb.com>

	* Makefile.ami, glob/Makefile.ami: Remove obsolete files

2018-07-01  Ola Olsson  <ola1olsson@gmail.com>

	* doc/make.texi: Updated language

2018-07-01  Paul Smith  <psmith@gnu.org>

	* all: Update Copyright statements for 2018

	* scripts/copyright-update: Maintainer's script for copyright mgmt

2018-02-10  Paul Smith  <psmith@gnu.org>

	* build_w32.bat: Support Visual Studio 17.

2017-11-19  Paul Smith  <psmith@gnu.org>

	* configure.ac: Support GLIBC glob interface version 2

2017-11-19  Paul Smith  <psmith@gnu.org>

	Rework directory structure to use GNU-recommended "src" directory.
	Move the source code (other than glob) into the "src" subdirectory.
	Update all scripting and recommendations to support this change.

	* *.c, *.h, w32/*: Move to src/
	* configure.ac, Makefile.am, maintMakefile: Locate new source files.
	* Basic.mk.template, mk/*: Update for new source file locations.
	* NEWS, README.DOS.template: Update for new locations.
	* build.template, build_w32.bat, builddos.bat: Ditto.
	* po/POTFILES.in: Ditto
	* tests/run_make_tests.pl, tests/scripts/features/load*: Ditto.
	* make.1: Move to doc.
	* mk/VMS.mk: Add support for building on VMS (hopefully).
	* makefile.vms, prepare_w32.bat: Remove.
	* SCOPTIONS: Update to define HAVE_CONFIG_H

2017-11-18  Paul Smith  <psmith@gnu.org>

	* job.c: Add "command" as a known shell built-in.
	This is not a POSIX shell built-in but it's common in UNIX shells.
	Reported by Nick Bowler <nbowler@draconx.ca>.

	* tests/scripts/features/output-sync: Revert bad change in 0c5a9f9b92a

2017-11-18  Paul Smith  <psmith@gnu.org>

	Remove unsupported build facilities.
	Over time the non-standard build and install systems (nmake files,
	smake files, Visual Studio project files, etc.) have atrophied and
	maintaining them is not worth the effort, for such a simple utility
	as make.  Remove all the non-standard build tool support and unify
	OS-specific build rules under a basic set of (GNU make) makefiles.

	Preserve the existing bootstrapping scripts (for POSIX, Windows,
	and MS-DOS).  Also the existing VMS build scripts are left unchanged:
	I don't have enough experience with VMS to venture into this area.
	Perhaps one of the VMS maintainers might like to determine whether
	conversion would be appropriate.

	Rather than create libraries for w32 and glob (non-POSIX), simply
	link the object files directly to remove the complexity.

	* NEWS: Update with user-facing notes.
	* Makefile.am: Clean up to use the latest automake best practices.
	Build Windows code directly from the root makefile to avoid recursion.
	* README.Amiga, README.DOS.template, README.W32.template: Updated.
	* INSTALL: Point readers at the README.git file.
	* maintMakefile: Remove obsolete files.  Create Basic.mk file.
	* Basic.mk.template, mk/*.mk: Create basic GNU make-based makefiles.
	* build_w32.bat: Copy Basic.mk to Makefile
	* configure.ac: We no longer need AM_PROG_AR.
	* dosbuild.bat: Rename to builddos.bat.  Incorporate configure.bat.
	* Makefile.DOS.template: Remove.
	* NMakefile.template, w32/subproc/NMakefile: Remove.
	* SMakefile.template, glob/SMakefile, glob/SCOPTIONS, make.lnk: Remove.
	* configure.bat, glob/configure.bat: Remove.
	* w32/Makefile.am: Remove.
	* make_msvc_net2003.sln, make_msvc_net2003.vcproj: Remove.

2017-11-11  Paul Smith  <psmith@gnu.org>

	* Makefile.am: Add jhelp.pl to remote test setup.

2017-11-11  Paolo Bonzini  <pbonzini@redhat.com>

	Do not use STOP_SET for singleton compares.
	Compare against '$' directly rather than using MAP_VARIABLE.
	This saves ~10% for find_map_function, which is the top hotspot in
	QEMU's no-op build.  The build is sped up overall by about 1.5%
	more (from 11.1s to 10.95s).

	* read.c (find_map_function): Do not compare against singleton sets.

2017-11-11  Paolo Bonzini  <pbonzini@redhat.com>

	Speedup parsing of functions.
	Use the stopchar map to quickly jump over everything that is
	not an open/close brace, an open/close parenthesis or a comma.

	This saves 1% on QEMU's noop build (from 11.23s to 11.1s).

	* function.c (find_next_argument, handle_function): Check
	with STOP_SET before comparing against individual characters.
	* main.c (initialize_stopchar_map): Initialize MAP_VARSEP
	mappings in stopchar_map.
	* makeint.h (MAP_VARSEP): New.

2017-11-11  Paolo Bonzini  <pbonzini@redhat.com>

	Remove MAP_PERCENT as strchr is faster.
	* read.c (find_percent_cached): Use strchr instead of STOP_SET
	to find % or nul.
	* makeint.h (MAP_PERCENT): Remove.
	* main.c (initialize_stopchar_map): Remove.

2017-11-11  Paolo Bonzini  <pbonzini@redhat.com>

	Use Jenkins hash.
	This is about twice as fast as the current hash, and removes the
	need for double hashing (improving locality of reference).  The
	hash function is based on Bob Jenkins' design, slightly adapted
	wherever Make needs to hash NUL-terminated strings.  The old hash
	function is kept for case-insensitive hashing.

	This saves 8.5% on QEMU's no-op build (from 12.87s to 11.78s).

	* configure.ac: Check endianness.
	* hash.c (rol32, jhash_mix, jhash_final, JHASH_INITVAL,
	sum_get_unaligned_32, jhash): New.
	* hash.h (STRING_HASH_1, STRING_N_HASH_1): Use jhash.
	(STRING_HASH_2, STRING_N_HASH_2): Return a dummy value.
	(STRING_N_COMPARE, return_STRING_N_COMPARE): Prefer memcmp to strncmp.

2017-11-11  Paolo Bonzini  <pbonzini@redhat.com>

	Use strchr for simple case of find_char_unquote.
	In most cases, find_char_unquote has a single stopchar.  In that
	case we can look for it using strchr's optimized implementation.

	This saves 3.5% on QEMU's noop build (from 11.78s to 11.37s).

	* read.c (find_char_unquote): Rename to find_map_unquote.  Replace
	with an implementation optimized for the case where the stopchar
	is a singleton.  Adjust all callers.

2017-11-11  Paolo Bonzini  <pbonzini@redhat.com>

	Use strchr/memmove in collapse_continuations.
	collapse_continuations is already using strchr to speed up the
	common case of no backslash-newline sequence, but on modern
	processors it is faster to scan the string twice with
	strchr+memmove (or strlen+memmove) than to move bytes manually.

	Saves about 1.5% on QEMU's no-op build (from 11.37s to 11.23s).

	* misc.c (collapse_continuations): Rewrite the scanning of LINE.

2017-10-31  Paul Smith  <psmith@gnu.org>

	* main.c (main): [SV 48274] Allow -j in makefile MAKEFLAGS variable.
	* tests/jhelp.pl: New file to allow testing parallelism without sleep.
	* tests/scripts/features/parallelism: Test this.
	* tests/scripts/features/jobserver: Update tests.
	* tests/scripts/features/output-sync: Remove useless rm command.

2017-10-30  Paul Smith  <psmith@gnu.org>

	* job.c (child_error): Modify error message string.
	Ensure Emacs compile-mode's next-error doesn't match target failure
	messages.  Syntax errors in makefiles are still matched.

	* function.c (func_if): Check the first character of condition.
	Reported by Rob W <robw9739@gmail.com>

2017-10-30  Paul Eggert  <eggert@cs.ucla.edu>

	glob: Do not assume glibc glob internals.
	It has been proposed that glibc glob start using gl_lstat,
	which the API allows it to do.  GNU 'make' should not get in
	the way of this.  See:
	https://sourceware.org/ml/libc-alpha/2017-09/msg00409.html

	* dir.c (local_lstat): New function, like local_stat.
	(dir_setup_glob): Use it to initialize gl_lstat too, as the API
	requires.

2017-10-30  Paul Smith  <psmith@gnu.org>

	Compute load from number of running processes.
	* job.c (load_too_high): If /proc/loadavg is available, compare the
	maximum load against the number of processes currently running.  If
	we can't parse /proc/loadavg, use the previous algorithm.

	Concept and initial patch from Sven C. Dack <sven.c.dack@sky.com>

2017-09-30  Eli Zaretskii  <eliz@gnu.org>

	Fix checking existence of directories on MS-Windows
	* remake.c (name_mtime) [WINDOWS32]: Emulate Posix behavior of
	'stat' with the likes of "foo/" and "foo/.".

2017-07-09  Paul Smith  <psmith@gnu.org>

	Update copyright statements for 2017.

	Remove uses of unnecessary "register" keyword.

	* variable.c (create_pattern_var): [SV 51266] Create with xcalloc().
	Reported by Chris Metcalf <cmetcalf@mellanox.com>

	[SV 51400] Only unblock fatal signals after child invocation
	* job.c (unblock_sigs): Only unblock fatal signals not all signals.
	(unblock_all_sigs): Unblock all signals not just fatal signals.
	(child_execute_job): Call unblock_all_sigs() in child process.
	* job.h: Remove unused function definitions.
	* remote-cstms.c (start_remote_job): Call unblock_all_sigs() in
	child process.
	Reported by Koen Van Hoof <koen.van_hoof@nokia.com>

2017-07-01  Paul Smith  <psmith@gnu.org>

	* function.c (shell_completed): [SV 51014] Add signal to .SHELLSTATUS
	* tests/scripts/functions/shell: Verify that .SHELLSTATUS contains
	a non-0 value when the shell exits due to a signal.

2017-06-07  Eli Zaretskii  <eliz@gnu.org>

	Avoid crashes when SHELL=abcde is specified on the command line
	* variable.c (do_variable_definition): If $SHELL was not found,
	process "SHELL=foo" as any other variable definition.  This avoids
	segfaults when SHELL=foo is specified on the Make command line.
	Reported by Orgad Shaneh <orgads@gmail.com>.

2017-06-04  Paul Smith  <psmith@gnu.org>

	[SV 51159] Use a non-blocking read with pselect to avoid hangs.
	* posixos.c (set_blocking): Set blocking on a file descriptor.
	(jobserver_setup): Set non-blocking on the jobserver read side.
	(jobserver_parse_auth): Ditto.
	(jobserver_acquire_all): Set blocking to avoid a busy-wait loop.
	(jobserver_acquire): If the non-blocking read() returns without
	taking a token then try again.

	[SV 50823] Support filenames containing '$' in MAKEFILE_LIST
	* variable.h (enum variable_flavor: Add a new flavor for appended
	values that shouldn't be expanded.
	* variable.c (do_variable_definition): If given this new flavor,
	do not expand the value before appending it.
	* read.c (eval_makefile): Use this new flavor for MAKEFILE_LIST
	* tests/scripts/variables/MFILE_LIST: Test filenames containing '$'.

	* tests/test_driver.pl: Useful error if given an invalid test name.

	* NEWS: Do not insert a space during '+=' if the value is empty.
	* doc/make.texi (Appending): Document this behavior.
	* variable.c (do_variable_definition): Only add a space if the variable
	value is not empty.
	* tests/scripts/variables/flavors: Test this behavior.

2017-06-04  Enrique Olaizola  <enrique_olaizola16@hotmail.com>  (tiny change)

	* read.c (read_all_makefiles): [SV 50909] Add MAKEFILES to strcache

2017-06-04  Paul Smith  <psmith@gnu.org>

	* po/LINGUAS: Add support for traditional Chinese (zh_TW)

	Rename output_tmpfile() to a misc function get_tmpfile()
	* output.c: Remove output_tmpfile() and umask handling.
	* output.h: Ditto.
	* misc.c: Add get_tmpfile() and umask handling.
	* makeint.h: Ditto.
	* function.c: Rename output_tmpfile() to get_tmpfile().
	* main.c: Ditto.
	* vmsjobs.c: Ditto.

	[SV 13651] Handle out-of-memory conditions slightly more gracefully.
	* makeint.h: Change OUT_OF_MEM() macro to out_of_memory() function.
	* output.h, job.h: Move FD_* macros from job.h to output.h.
	* output.c (output_write): Write a buffer to an FD directly.
	(out_of_memory): Use output_write() to avoid allocating more
	memory while writing the error, and call exit() instead of die().
	This does mean we can't translate the error string, though.
	* misc.c (xmalloc, xcalloc, xrealloc, xstrdup, xstrndup): Call new
	out_of_memory() rather than OUT_OF_MEM().
	* read.c (parse_file_seq): Ditto.

	Clean up close-on-exec, particularly with jobserver pipes.
	* configure.ac: Check sys/file.h and assume fileno() always exists.
	* output.h: Move output-specific content from job.h to output.h.
	* os.h (fd_inherit, fd_noinherit): New functions manage FD inheritance.
	* posixos.c (fd_inherit, fd_noinherit): Implement for POSIX systems.
	(jobserver_setup): Force jobserver FDs to not be inherited by default.
	(jobserver_pre_child): Enable inheritance in recursive invocations.
	(jobserver_post_child): Disable inheritance after recursive invocations.
	* w32/w32os.c (fd_inherit, fd_noinherit): Implement for W32 systems.
	* job.h (CLOSE_ON_EXEC): Remove macro in deference to new fd_noinherit.
	* function.c (func_shell_base): Convert CLOSE_ON_EXEC to fd_noinherit.
	* job.c (child_execute_job): Ditto.
	* output.c (setup_tmpfile): Ditto.
	* read.c (eval_makefile): Ditto, plus remove HAVE_FILENO check.
	* w32/include/sub_proc.h: Remove process_noinherit for fd_noinherit.
	* w32/subproc/sub_proc.c: Ditto.

	[SV 50300] Use CFLAGS value of "-O1" in POSIX mode.
	* read.c (record_files): Use "-O1" not "-O" for CFLAGS and FFLAGS.
	* tests/scripts/targets/POSIX: Test for the new value.

	* configure.ac: [SV 50648] Detect Guile 2.2 packages.

	* doc/make.texi: [SV 50304] Add missing close parenthesis.

	Add test suite support to Windows
	* main.c (main): Sanitize program name detection on Windows.
	* makeint.h: 'program' is a const string on all platforms now.
	* tests/run_make_tests.bat: Windows bat file to invoke tests
	* tests/test_driver.pl: Obtain system-specific error messages.
	(get_osname): Compute the $port_type here.  Add more $osname checks
	for different Windows Perl ports.
	(_run_command): Rewrite the timeout capability to work properly
	with Windows.  Don't use Perl fork/exec; instead use system(1,...)
	which allows a more reliable/proper kill operation.
	Also, allow options to be given as a list instead of a string, to
	allow more complex quoting of command-line arguments.
	* tests/run_make_tests.pl (run_make_with_options): Allow options
	to be provided as a list in addition to a simple string.
	(set_more_defaults): Write sample makefiles and run make on them
	instead of trying to run echo and invoking make with -f-, to avoid
	relying on shell and echo to get basic configuration values.  Also
	create a $sh_name variable instead of hard-coding /bin/sh.
	* tests/scripts/features/archives: Skip on Windows.
	* tests/scripts/features/escape: Use list method for passing options.
	* tests/scripts/features/include: Use system-specific error messages.
	* tests/scripts/features/output-sync: "Command not found" errors
	generate very different / odd output on Windows.  This needs to be
	addressed but for now disable these tests on Windows.
	* tests/scripts/functions/abspath: Disable on Windows.
	* tests/scripts/functions/file: Use system-specific error messages.
	* tests/scripts/functions/shell: "Command not found" errors generate
	very different / odd output on Windows.  This needs to be addressed
	but for now disable these tests on Windows.
	* tests/scripts/misc/close_stdout: Disable on Windows.
	* tests/scripts/options/dash-k: Use system-specific error messages.
	* tests/scripts/options/dash-l: Disable on Windows.
	* tests/scripts/options/eval: Use list method for passing options.
	* tests/scripts/options/general: Skip some non-portable tests.
	* tests/scripts/targets/ONESHELL: Skip some non-portable tests.
	* tests/scripts/targets/POSIX: Skip some non-portable tests.
	* tests/scripts/variables/MAKEFILES: Skip some non-portable tests.
	* tests/scripts/variables/SHELL: Use a makefile not -f- for testing.

2017-06-04  Enrique Olaizola  <enrique_olaizola16@hotmail.com>

	* tests/run_make_tests.pl: [SV 50902] Find Perl modules

2017-01-11  Eli Zaretskii  <eliz@gnu.org>

	[SV 50021] Avoid infloop on MS-Windows with short scripts
	* job.c (reap_children) [WINDOWS32]: Avoid recursive call to
	reap_children when the argument passed to
	map_windows32_error_to_string is negative or too large.

2016-12-28  Paul Smith  <psmith@gnu.org>

	* main.c (switches): Add -E as an alias for --eval.
	* make.1: Document the -E and --eval options.
	* doc/make.texi: Document the -E option.
	* tests/scripts/options/eval: Test the -E option and MAKEFILES.
	* NEWS: Add information about the new option.

	* main.c (switches): Add --no-silent to undo -s options.
	* make.1: Document the new flag.
	* doc/make.texi: Document the new flag.  Remove suggestions that the
	.SILENT special target is deprecated or should not be used.
	* tests/scripts/options/dash-s: Test the -s and --no-silent options.
	* NEWS: Add information about the new option.

2016-12-26  Martin Dorey  <martin.dorey@hds.com>

	* job.c (child_execute_job): [SV 49938] Avoid spurious GCC warning.

	* main.c (main): [SV 49935] Fix uninitialized variable.

2016-12-26  Paul Smith  <psmith@gnu.org>

	[SV 40236] Handle included file open failures properly.
	* read.c (eval_makefile): Set deps->error if we discovered any
	error reading makefiles, and set NONEXISTENT_MTIME so we know
	it needs to be rebuilt.
	* main.c (main): Clean up management of makefile_mtimes.
	* tests/scripts/features/include: Add open failure testcases.

	Portability changes for the test suite.
	* tests/test_driver.pl: Save error strings for later comparison.
	* tests/run_make_tests.pl: Create portable commands for later use.
	* tests/*: Use these new variables.

	[SV 20513] Un-escaped # are not comments in function invocations
	* NEWS: Document the change, as a backward-incompatible change.
	* main.c (main): Add 'nocomment' to the .FEATURES variable.
	* read.c (remove_comments): Skip variable references during remove.
	(find_char_unquote): Fix comments for new STOPMAP support.
	* tests/scripts/features/escape: Test new escape syntax.
	* tests/scripts/functions/guile: Ditto.
	* tests/scripts/functions/shell: Ditto.

	* main.c (main): [SV 40234] Show correct error message.

2016-12-26  Christoph Schulz  <develop@kristov.de>

	* main.c (switches): [SV 48809] Accept obsolete jobserver flag.

2016-12-26  Paul Smith  <psmith@gnu.org>

	* read.c (get_next_mword): [SV 49865] Make fallthrough explicit.

	[SV 49114] Remove support for the NO_FLOAT compile flag.
	* makeint.h (max_load_average): Always a double.
	* main.c (max_load_average, default_load_average): Always doubles.
	(switches): -l option is a "floating" format.
	(decode_switches, define_makeflags): Support "floating" format.
	* remake.c (f_mtime): Show time skew as double.
	* rule.c (print_rule_data_base): Show percentages as double.
	* Makefile.ami, README.DOS.template, SMakefile.template: Remove
	references to NO_FLOAT.
	* SCOPTIONS, glob/SCOPTIONS: Remove NO_FLOAT settings.

	[SV 45477] [SV 49115] Parse DOS/Windows drivespecs correctly.
	* read.c (parse_file_seq) [WINDOWS32]: Only consider a colon part of
	a path if it's in a valid Windows drivespec.

2016-12-25  Paul Smith  <psmith@gnu.org>

	[SV 49116] Check potential null pointer dereference.
	* w32/subproc/sub_proc.c (make_command_line): Simplify cygwin shell
	check for correctness.

2016-12-25  Jaak Ristioja  <jaak@ristioja.ee>

	* expand.c (variable_append): [SV 49113] Possible null ptr deref

	* w32/*/dirent.*: [SV 49111] Remove unused telldir()

2016-12-25  Paul Smith  <psmith@gnu.org>

	Add more GCC warnings to the maintainer build.
	* arscan.c: [SV 49112] Correct TEST printf() formatting.
	Recommended by Jaak Ristioja <jaak@ristioja.ee>
	* hash.c: Correct fprintf() formatting.
	* maintMakefile: Add extra GCC warning flags.

	* po/Makevars, makeint.h, debug.h: Add xgettext C format flags.

	* po/LINGUAS: Added Serbian translation.

	* README.template: Clarify some items in the README

	* doc/make.texi: [SV 48951] Fix documentation typo.

	* maintMakefile: Update default GPG ID for new key.

2016-12-14  Paul Smith  <psmith@gnu.org>

	Resolve issues discovered by static code analysis.
	* maintMakefile: Add a rule to submit code for analysis.
	* configure.ac: Check for availability of the umask() function.
	* output.c (output_tmpfd, output_tmpfile): Use umask on temp files.
	* makeint.h (PATH_VAR): Reserve an extra character for nul bytes.
	* function.c (func_error): Initialize buffer to empty string.
	* job.c (child_execute_job): Verify validity of fdin.
	* main.c (main): Simplify code for makefile updating algorithm.
	* arscan.c (ar_scan): Verify member name length before reading.
	* read.c (readline): Cast pointer arithmetic to avoid warnings.
	* remake.c (update_file): Remove unreachable code.
	(name_mtime): Verify symlink name length.

2016-11-12  Eli Zaretskii  <eliz@gnu.org>

	* NEWS: Mention the extended support for -jN on MS-Windows.

2016-11-12  Marc Ullman  <marc@mathworks.com>

	Support more than 63 jobs on MS-Windows
	* job.c (start_waiting_job, load_too_high):
	* w32/w32os.c (jobserver_setup, jobserver_acquire): Abstracted out
	MAXIMUM_WAIT_OBJECTS.  Call process_table_full instead.
	* w32/include/sub_proc.h: Update and add prototypes.
	* w32/subproc/sub_proc.c (GMAKE_MAXIMUM_WAIT_OBJECTS): New macro.
	(process_wait_for_multiple_objects): Drop-in replacement for Windows
	API WaitForMultipleOjects.
	(process_wait_for_any_private): Replaced MAXIMUM_WAIT_OBJECTS with
	GMAKE_MAXIMUM_WAIT_OBJECTS.
	(process_table_full): Replacement for process_used_slots.
	(process_used_slots): Removed, as no longer needed.
	(process_table_usable_size): Returns maximum usable size of process
	table.
	(process_table_actual_size): Returns actual size of process table.
	(process_register): Added assertion.
	(process_easy): Abstracted out MAXIMUM_WAIT_OBJECTS.

2016-10-09  Eli Zaretskii  <eliz@gnu.org>

	Only include strings.h in MinGW builds
	* main.c:
	* job.c: Include strings.h only if HAVE_STRINGS_H is defined.

	* config.h.W32.template (HAVE_STRINGS_H): Define only for MinGW,
	as MSVC doesn't have this header.

2016-10-06  Eli Zaretskii  <eliz@gnu.org>

	Update the Guile version tested with the MS-Windows build.

	Avoid compiler warnings with MinGW runtime 3.22.2
	* main.c:
	* job.c: Include strings.h, to get the prototypes of strcasecmp
	and strncasecmp with latest MinGW runtime versions.
	* config.h.W32.template (HAVE_STRINGS_H): Define.

2016-06-24  Paul Smith  <psmith@gnu.org>

	* README.W32.template: Update the build documentation.
	* build_w32.bat: Fix issues with Visual Studio builds.  Fix an error
	that always created Debug builds.  Support 32bit and 64bit builds.

	* Update to pre-release version 4.2.90.

2016-06-10  Paul Smith  <psmith@gnu.org>

	GNU Make release 4.2.1.

2016-06-06  Paul Smith  <psmith@gnu.org>

	* maintMakefile: TP recommends rsync for retrieving PO files.

2016-05-31  Jeremy Devenport  <jeremy.devenport@gmail.com>  (tiny change)

	* main.c (main): [SV 48009] Reset stack limit for make re-exec.

2016-05-31  Paul Smith  <psmith@gnu.org>

	[SV 47995] Ensure forced double-colon rules work with -j.
	The fix for SV 44742 had a side-effect that some double-colon targets
	were skipped.  This happens because the "considered" facility assumed
	that all targets would be visited on each walk through the dependency
	graph: we used a bit for considered and toggled it on each pass; if
	we didn't walk the entire graph on every pass the bit would get out
	of sync.  The new behavior after SV 44742 might return early without
	walking the entire graph.  To fix this I changed the considered value
	to an integer which is monotonically increasing: it is then never
	possible to incorrectly determine that a previous pass through the
	graph already considered the current target.

	* filedef.h (struct file): make CONSIDERED an unsigned int.
	* main.c (main): No longer need to reset CONSIDERED.
	* remake.c (update_goal_chain): increment CONSIDERED rather than
	inverting it between 0<->1.
	(update_file_1): Reset CONSIDERED to 0 so it's re-considered.
	(check_dep): Ditto.
	* tests/scripts/features/double_colon: Add a regression test.

2016-05-31  Paul Smith  <psmith@gnu.org>

	* DELETE_ON_ERROR: [SV 48061] Use "exit 1" for portability.
	Reported by Joel Fredrikson <Joel.Fredrikson@it.uu.se>

	* w32/pathstuff.c: [SV 47996] Use ISBLANK() not isblank().

2016-05-28  Eli Zaretskii  <eliz@gnu.org>

	Fix printing time stamps on MS-Windows
	* dir.c (print_dir_data_base) [WINDOWS32]: Use %I64u format for
	printing unsigned 64-bit data types, as %ull is not universally
	supported.

2016-05-27  Luke Allardyce  <lukeallardyce@gmail.com>  (tiny change)

	[SV 48037] Fix MinGW build with Posix configury tools
	* w32/Makefile.am (libw32_a_CPPFLAGS): Add -I$(srcdir)/glob.

2016-05-22  Paul Smith  <psmith@gnu.org>

	GNU Make release 4.2.

2016-05-21  Joe Crayne  <oh.hello.joe@gmail.com>  (tiny change)

	[SV 44742] Fix double-colon rules plus parallel builds.
	* remake.c (update_file): Don't update double-colon target status
	if we're still building targets.
	(ftime_t): Don't propagate timestamps for double-colon targets that
	we've not examined yet.
	* tests/scripts/features/double_colon: Add parallel build tests.

2016-05-21  Paul Smith  <psmith@gnu.org>

	* read.c (eval): [SV 47960] Skip record waiting files when ignoring.
	* tests/scripts/features/conditionals: Test this scenario.

	Separate the GNU make load ABI from internal types.
	Create an internal type "floc" and convert all users to that type.
	* gnumake.h (gmk_floc): Remove the offset field from this type.
	* loadapi.c (gmk_eval): Convert gmk_floc to internal floc.

2016-05-21  Paul Eggert  <eggert@cs.ucla.edu>

	Fixes for enhanced GCC warnings.
	Move function prototypes into header files and out of .c files.
	Use void argument lists for functions that accept no args.
	Remove unused macros.  Make private functions static.  Align
	types with printf format characters.

2016-05-21  Paul Smith  <psmith@gnu.org>

	Fix compile issues with Windows and VMS.
	* main.c (initialize_stopchar_map): isblank() is not part of C89.
	Install bits for space and tab directly.
	* makeint.h: Don't define vfork; autoconf handles this for us.
	* vmsjobs.c: Rename NEXT_TOKEN to V_NEXT_TOKEN to avoid conflicts.
	* dir.c (print_dir_data_base): Visual Studio C doesn't have int64_t.
	* w32/subproc/sub_proc.c (process_begin): Missing arg to memset().
	* build_w32.bat: Don't use obsolete Visual Studio flags.

	Allow compiling with an ISO C 1989/1990 compiler.
	* posixos.c (jobserver_post_child): Use C89 for loop syntax.
	* remake.c (update_goal_chain): Ditto.
	* variable.c (parse_variable_definition): Ditto.

2016-05-17  Eli Zaretskii  <eliz@gnu.org>

	[SV 47942] Avoid random crashes in subordinate programs on MS-Windows
	* w32/subproc/sub_proc.c (process_begin): Zero out startInfo
	before using it.  Fixes crashes in Intel Fortran compiler invoked
	by Make.

2016-04-24  Eli Zaretskii  <eliz@gnu.org>

	Fix the MS-Windows MinGW build
	* build_w32.bat (GccCompile): Use -std=gnu99, as some code uses
	C99 features ('for' loop initial declarations).

	* dir.c (print_dir_data_base) [WINDOWS32]: Cast 'mtime' to
	'int64_t', and use %I64d to print it, to avoid compile-time
	warning about printing a 'time_t' value, which could be either
	a 32-bit or a 64 bit integral type.

2016-04-23  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/output-sync: increase test timeout.
	I'm getting random failures with a timeout of 10s; increase to 30s.

2016-04-11  Paul Smith  <psmith@gnu.org>

	* NEWS: Update for pre-release

	* dep.h, makeint.h (show_goal_error): Move to makeint.h.

2016-04-11  Paul Smith  <psmith@gnu.org>

	[SV 46433] Show recipe line offsets in line number messages.
	While displaying line numbers, show the relevant line number inside
	the recipe not just the first line of the entire recipe.
	Sample changes suggested by Brian Vandenberg <phantall@gmail.com>

	* gnumake.h (gmk_floc): Add an 'offset' to track the recipe offset.
	* read.c (eval, eval_makefile, eval_buffer): Initialize 'offset'.
	(record_files, install_pattern_rule): Ditto.
	* job.c (new_job, job_next_command): Update 'offset' based on the
	line of the recipe we're expanding or invoking.
	(child_error): Add 'offset' when showing the line number.
	* function.c (func_shell_base): Ditto.
	* output.c (error, fatal): Ditto.
	* NEWS: Mention the new ability.
	* tests/scripts/features/errors: Check the line number on errors.
	* tests/scripts/functions/warning: Check the line number on warnings.
	* tests/scripts/features/output-sync,
	tests/scripts/features/parallelism, tests/scripts/functions/shell,
	tests/scripts/functions/error: Update line numbers.

2016-04-09  Paul Smith  <psmith@gnu.org>

	* maintMakefile: Add a rule for storing preprocessor output.

	[SV 102] Don't show unnecessary include file errors.
	Delay the generation of error messages for included files until we
	are sure that we can't rebuild that included file.
	* dep.h (struct dep): Don't reuse "changed"; make a separate field
	to keep "flags".  Get rid of dontcare and use the flag.
	(struct goaldep): Create a new structure for goal prereqs
	that tracks an errno value and the floc where the include happened.
	Rework the structures to ensure they are supersets as expected.
	In maintainer mode with GCC, use inline to get type checking.
	* read.c (eval_makefile): Return a struct goaldep for the new
	makefile.  Ensure errno is set properly to denote a failure.
	(read_all_makefiles): Switch to goaldep and check errno.
	(eval): Don't show included file errors; instead remember them.
	* remake.c (update_goal_chain): Set global variables to the current
	goaldep we're building, and the entire chain.
	(show_goal_error): Check if the current failure is a consequence
	of building an included makefile and if so print an error.
	(complain): Call show_goal_error() on rule failure.
	* job.c (child_error): Call show_goal_error() on child error.
	* main.c (main): Switch from struct dep to goaldep.
	* misc.c (free_dep_chain): Not used; make into a macro.
	* tests/scripts/features/include: Update and include new tests.
	* tests/scripts/options/dash-B, tests/scripts/options/dash-W,
	tests/scripts/options/print-directory,
	tests/scripts/variables/MAKE_RESTARTS: Update known-good-output.

	* job.c (child_error): Add filename length to output length.
	Reported by Dale Stimson <dale@riyescott.com>

2016-04-04  Paul Smith  <psmith@gnu.org>

	Preserve the real value of -jN in MAKEFLAGS using jobserver.
	Previously if the jobserver was active, MAKEFLAGS would contain only
	the -j option but not the number (not -j5 or whatever) so users
	could not discover that value.  Allow that value to be provided in
	MAKEFLAGS without error but still give warnings if -jN is provided
	on the command line if the jobserver is already activated.

	* NEWS: Discuss the new behavior.
	* os.h, posixos.c, w32/w32os.c: Return success/failure from
	jobserver_setup() and jobserver_parse_auth().
	* main.c (main): Separate the command line storage of job slots (now
	in arg_job_slots) from the control storage (in job_slots).  Make a
	distinction between -jN flags read from MAKEFLAGS and those seen
	on the command line: for the latter if the jobserver is enabled then
	warn and disable it, as before.
	* tests/scripts/features/jobserver: Add new testing.

2016-04-04  Paul Smith  <psmith@gnu.org>

	* tests/run_make_tests.pl: Add file/lineno info to .run file.

	* maintMakefile: Fix logging of check-alt-config target.

	* job.c (child_execute_job): Fix $(shell...) under NO_OUTPUT_SYNC.
	* main.c (decode_output_sync_flags): Use NONE for NO_OUTPUT_SYNC.

	* main.c (main): Restrict disabling debugging for MAKEFILES.

	* Makefile.am, w32/Makefile.am: Fix *os.c for Windows builds.
	Original change provided by Luke Allardyce <lukeallardyce@gmail.com>

	* make.texi: Confirm that CURDIR contains an absolute path.

	* docs/make.texi: [SV 47392] Add "Integrating make" chapter.

	Change --jobserver-fds to more generic --jobserver-auth.
	* NEWS: Mention the change.
	* main.c: Rename jobserver_fds variable to jobserver_auth and
	--jobserver-fds option to --jobserver-auth.
	* os.h, posixos.c, w32/w32os.c: Rename jobserver_parse_arg() and
	jobserver_get_arg() to jobserver_parse_auth()/jobserver_get_auth().

2016-03-23  Paul Smith  <psmith@gnu.org>

	* tests/run_make_tests.pl: Preserve $make_command
	* tests/scripts/options/dash-n: Use $make_command.  This fixes
	a spurious failure when running tests with valgrind enabled.

	* variable.c: Clean up some memory leaks.

	[SV 46995] Strip leading/trailing space from variable names
	* makeint.h: Change MAP_SPACE to MAP_NEWLINE, and add MAP_PATHSEP
	and MAP_SPACE which is now MAP_BLANK|MAP_NEWLINE.  Create
	NEW_TOKEN(), END_OF_TOKEN(), ISBLANK(), ISSPACE() macros.
	* main.c (initialize_stopchar_map): Set MAP_NEWLINE only for
	newline characters.
	* Convert all uses of isblank() and isspace() to macros.
	* Examine all uses of isblank() (doesn't accept newlines) and
	change them wherever possible to ISSPACE() (does accept newlines).
	* function.c (func_foreach): Strip leading/trailing space.
	* variable.c (parse_variable_definition): Clean up.
	* tests/scripts/functions/foreach: Test settings and errors.
	* tests/scripts/functions/call: Rewrite to new-style.
	* tests/scripts/misc/bs-nl: Add many more tests for newlines.

2016-03-21  Paul Smith  <psmith@gnu.org>

	* function.c (func_file): Support reading from files.
	* NEWS: Add information about reading files.
	* make.texi (File Function): Describe reading files.
	* tests/scripts/functions/file: Test new features for $(file ...)

2016-03-20  Paul Smith  <psmith@gnu.org>

	* doc/make.texi (Setting Variables): Fix typo (add comma).

	* job.c (child_error): Combine file info with error message.
	* tests/scripts/...: Update error message matches.

2016-03-19  Paul Smith  <psmith@gnu.org>

	* variable.c: Align type of variable_changenum.

2016-03-13  Paul Smith  <psmith@gnu.org>

	[SV 45728] Detect changes in .VARIABLES more accurately.
	For performance, we only recompute .VARIABLES when (a) it's expanded
	and (b) when its value will change from a previous expansion.  To
	determine (b) we were checking the number of entries in the hash
	table which used to work until we started undefining entries: now if
	you undefine and redefine the same number of entries in between
	expanding .VARIABLES, it doesn't detect any change.  Instead, keep
	an increasing change number.
	* variables.c: Add variable_changenum.
	(define_variable_in_set, merge_variable_sets): Increment
	variable_changenum if adding a new variable to the global set.
	(undefine_variable_in_set): Increment variable_changenum if
	undefining a variable from the global set.
	(lookup_special_var): Test variable_changenum not the hash table.
	* tests/scripts/variables/special: Test undefining variables.

	* main.c(main): Disable output sync without parallel builds.

	[SV 46581] Pre-define .LOADED to avoid warnings.
	* main.c (main): Pre-define .LOADED as a default-level variable.
	* load.c (load_file): Set the value rather than append it.  Avoid
	adding an extra initial whitespace.
	* tests/scripts/features/load: Run with --warn-undefined-variables.

2016-03-13  Paul Smith  <psmith@gnu.org>

	[SV 44555] Use vfork() instead of fork() where available.
	Testing has shown that vfork() is actually significantly
	more efficient on systems where it's supported, even for
	copy-on-write implementations.  If make is big enough,
	duplicating the page tables is significant overhead.

	* configure.ac: Check for fork/vfork.
	* makeint.h: Include vfork.h and set up #define for it.
	* os.h, posixos.c (get_bad_stdin): For children who can't use
	the normal stdin file descriptor, get a broken one.
	* job.c (start_job_command): Avoid so many ifdefs and simplify
	the invocation of child_execute_job()
	(child_execute_job): move the fork operation here so it can
	return early for the parent process.  Switch to use vfork().
	* function.c (func_shell_base): Use new child_execute_job() and
	simplify ifdefs.
	* job.h, main.c, remote-cstms.c, vmsjobs.c, w32os.c: Update
	declarations and calls.

2016-03-09  Paul Smith  <psmith@gnu.org>

	* job.c (exec_command): [SV 47365] Show error on exec failure.

2016-03-08  Paul Smith  <psmith@gnu.org>

	[SV 46261] Use pselect() for jobserver where supported.
	* Makefile.am, configure.ac: Check for pselect() and sys/select.h.
	* main.c (main): Block SIGCHLD if we have pselect() support.
	* posixos.c (jobserver_acquire): If we support pselect() then use
	it to query the jobserver pipe, while also listening for SIGCHLD.
	Also pselect() supports a timeout so avoid alarm() calls.

	Clean up some compiler warnings.
	* commands.c, commands.h: Use unsigned char for flags.
	* dir.c: Use time_t and size_t, and char for a boolean value.
	* job.c: Use unsigned and char.
	* read.c: Return a signed type since -1 is a valid return code.

	Extract jobserver implementation into OS-specific files.
	* os.h, posixos.c, w32/w32os.c: New files implementing jobserver.
	* job.c, job.h, main.c, makeint.h: Move content to new files.
	* w32/include/sub_proc.h, w32/subproc/sub_proc.c: Ditto.
	* Makefile.am: Build and package OS-specific files.
	* build_w32.bat, make_msvc_net2003.vcproj, README.W32.template:
	Update for new files, and clean up the build.
	* POTFILES.in, maintMakefile, NMakefile.template: Ditto.
	* w32/subproc/build.bat: Delete as unused.

	[SV 46261] Add more EINTRLOOP wrappers.
	This cannot be a perfect solution because there are always other
	possible places EINTR can happen, including external libraries
	such as gettext, Guile etc.

2016-02-29  Paul Smith  <psmith@gnu.org>

	* strcache.c (add_hugestring): [SV 46832] Support huge strings.
	The strcache was limited to strings of length 65535 or less,
	because the length is kept in an unsigned short.  To support
	huge strings add a new simple linked list, which we don't try
	to hash.

	* strcache.c (add_string): [SV 47071] Handle huge initial string.
	If the very first string added to the string cache is more than
	half the maximum size, we failed when moving the only strcache
	buffer to the full list.

	[SV 47151] Exit with 1 when checking recursive make -q
	* job.h (struct child): New bit to mark recursive command lines.
	* job.c (start_job_command): Set the recursive command line bit.
	(reap_children): If the child is a recursive command and it exits
	with 1 during question mode, don't print an error and exit with 1.
	* tests/scripts/options/dash-q: Add a regression test.

	* main.c (define_makeflags): Add parens to avoid GCC warning.

2016-02-29  Paul Smith  <psmith@gnu.org>

	* tests/scripts/features/archives: Handle deterministic archives.
	Newer versions of binutils allow ar to be compiled to generate
	"deterministic archives" by default: in this mode no timestamp
	information is generated in the static archive, which utterly
	breaks GNU make's archive updating capability.  Debian and Ubuntu
	have turned this feature on by default in their distributions
	which causes the regression tests to fail.

	Update the regression tests to check for the availability of the
	"U" option to ar which disables deterministic archives and allows
	GNU make's archive support to work properly again.

2016-02-28  Paul Smith  <psmith@gnu.org>

	Update Copyright statements for the new year.

	* doc/make.texi: [SV 47163] Fix typo in 'ifdef' documentation.

	* doc/make.texi: [SV 35455] Add more uses for Empty Recipes.

2015-11-07  Gisle Vanem  <gvanem@yahoo.no>

	Fix diagnostics on MS-Windows when environment is too large
		* w32/subproc/sub_proc.c (process_begin): Fix test of the error
		cause when the environment block is too large.

2015-10-27  Eli Zaretskii  <eliz@gnu.org>

	Update README.W32.template
	* README.W32.template: Update for latest developments.  Make it
	clear we don't recommend using HAVE_CASE_INSENSITIVE_FS in
	general.

	[SV 46304] Don't invoke C++ compiler on C sources on MS-Windows
	* default.c (default_variables) [HAVE_CASE_INSENSITIVE_FS]: Make
	COMPILE.C and LINK.C be synonyms for COMPILE.c and LINK.c,
	respectively.

2015-09-23  Eli Zaretskii  <eliz@gnu.org>

	[SV 45838] When invoking w32 programs, don't use free'd memory.
	* w32/subproc/sub_proc.c (process_begin): Freeing argv[0] makes
	the other argv[i] pointers invalid, so need to allocate a new
	array and copy argv[i] for i != 0 first, replacing argv[0] with
	the batch file name, before we can free argv[0].

2015-07-13  Paul Smith  <psmith@gnu.org>

	* implicit.c (pattern_search): [SV 43677] Mark files secondary.
	In order to fix SV 12267 we were marking the prerequisites of
	implicit (pattern) targets that existed elsewhere in the makefile
	as precious to keep them from being deleted as intermediate files.
	However this also keeps them from being deleted on error.  Instead
	mark them as secondary.
	* tests/scripts/targets/DELETE_ON_ERROR: Test DELETE_ON_ERROR.

2015-07-12  Paul Smith  <psmith@gnu.org>

	[SV 28092] Preserve the exit status of the $(shell...) function.
	Add a new variable .SHELLSTATUS which holds the exit status of the
	last-invoked shell function or != assignment.

	* NEWS, doc/make.texi: Document the change.
	* function.c (shell_completed, msdos_openpipe, func_shell_base): Add
	shell_completed() to handle the completion of the shell, by setting
	.SHELLSTATUS.  Call it where needed.
	* job.c (child_handler): Call shell_completed().
	* tests/scripts/functions/shell: Add tests for .SHELLSTATUS.

2015-07-12  Paul Smith  <psmith@gnu.org>

	* tests/scripts/misc/fopen-fail: [SV 42390] Increase test timeout.
	* Makefile.am (check-regression): Force ulimit -n for fopen-fail test.

	* job.c: [SV 43936] Check sigaction for error return.

	[SV 45049] Check for '$' being the last character in a string.
	* expand.c (variable_expand_string): Add a single '$' if '$' ends the
	string.
	* read.c (find_char_unquote, get_next_mword): Stop if '$' ends the
	string.
	* variable.c (parse_variable_definition): Ditto.

	* read.c (unescape_char): [SV 45050] Handle final backslashes.
	If the last thing in the string to be unescaped is a backslash,
	stop without reading beyond the end of the string.

	* strcache.c: [SV 45275] Handle very long strings.
	Our previous behavior for handling too-long strings involved
	increasing the size of the default string cache buffer, but the
	implementation was incomplete.  Instead, create a one-off large
	string cache entry and add it directly to the full cache list
	without changing the default buffer size.

2015-07-12  Duncan Moore  <duncan.moore@gmx.com>  (tiny change)

	* job.c [RISCOS]: Remove logic that is no longer required.

2015-07-12  Paul Smith  <psmith@gnu.org>

	* remake.c (update_file): [SV 44742] Keep double-colon rule status.
	Fix suggested by Everett Boyer <EvBoyer@aol.com>

2015-07-10  James Johnston  <johnstonj.public@codenest.com>  (tiny change)

	[SVN 45515] Check exit status of sub-make in subproc.bat
	* subproc.bat: Exit when sub-make invocation fails.

2015-07-10  Eli Zaretskii  <eliz@gnu.org>

	[SV 45515] Ignore Windows-specific build artifacts
	* .gitignore: Ignore *.exe, *.dll.a, *.lib, *pdb, and a few more MSVC
	specific artifacts.
	Suggested by James Johnston <johnstonj.public@codenest.com>

2015-02-28  Eli Zaretskii  <eliz@gnu.org>

	[SV 44348] Fix handling of shell widlcards on MS-Windows.
		* job.c (construct_command_argv_internal): If shell wildcard
		characters are found inside a string quoted with "..", give up the
		fast route and go through the shell.  Fixes Savannah bug #44348.

2015-01-27  John Malmberg  <wb8tyw@qsl.net>

	Fix bs-nl handling, exit and Environment for VMS.
	This fix required a complete rewrite of the command parser vmsjobs.c
	child_execute_job.  The old parser had too many incorrect assumptions
	about DCL commands and could not be repaired to extended.

	The parser now more closely parses VMS commands and handles quoted
	commands and redirection.  Command File mode has been improved, but can
	not fully support bs-nl syntax.

	VMS Unix shell simulation has been improved.

	* commands.c: vms_comma_separator is now a run-time setting.
	* function.c: vms_comma_separator is now a run-time setting.
	* function.c(func_basename_dir) now reports "[]" or "./" based on
	  VMS crtl runtime setting.
	* job.c(start_job_command): VMS Handle empty commands propery.
	* main.c: Add VMS environment variables for run-time settings.
	  * vms_legacy_behavior - Force older behavior.
	  * vms_comma_separator - Commas or spaces for separators.
	  * vms_unix_simulation - Enhanced Posix shell simulation features.
	  * Detect if VMS CRTL is set to report Unix paths instead of VMS.
	  * ':' and '>' are also MAP_DIRSEP on VMS.
	* makeint.h: Add VMS run-time option variables.
	* readme.vms: Update to current behavior.
	* variable.c(define_variable_in_set): Fix VMS Environment variable
	  lookup.
	* variable.c(define_automatic_variables): Remove some VMS specific
	  automatic variables and use the Unix ones instead.
	* vms_export_symbol.c: Set max symbol size correctly.
	* vmsjobs.c: child_execute_job() complete rewrite of VMS comand
	  parsing.
	* vmsjobs.c(build_vms_cmd): VMS commmand building with shell simulation.

2014-12-27  Christian Boos  <cboos@edgewall.org>  (tiny change)

	Fix $(shell) on hosts with 64-bit pid_t.
	* function.c: Use pid_t for shell_function_pid.
	* job.c: Likewise.

2014-10-20  Paul Smith  <psmith@gnu.org>

	* main.c (main): [SV 43434] Handle NULL returns from ttyname().

2014-10-20  Benedikt Morbach  <benedikt.morbach@googlemail.com>  (tiny change)

	* tests/scripts/features/archives: [SV 43405] override AR variable.

2014-10-20  John Malmberg  <wb8tyw@qsl.net>

	Fix VMS implicit rules and UNIX paths.
	This fixes VMS implicit rules and UNIX style pathname handling.
	It also fixes some of the VMS style pathname handling, more work
	there will be needed later.
	TODO: There are other case insensitive platforms besides VMS.
	We need to find out why there is extra VMS code for this.  This
	indicates either the extra VMS code is not needed, or the case
	insensitive support may not be complete on the other case
	insensitive platforms.

	* default.c: Add missing definitions to default_suffix_rules[] and
	default_variables[].
	TODO: As it is important that VMS DCL mode definitions must always
	be a superset of UNIX definitions, a better way of maintaining the
	VMS DCL mode definitions should be devised.
	* dir.c (downcase_inplace): Add a reentrant downcase() routine.
	Add future support for VMS 8.2+ _USE_STD_STAT macro which will
	disable a lot of VMS specific code from compiling.
	(dir_file_exists_p): vmsify filename only if directory name has VMS
	directory delimiters.
	(file_exists_p): Handle both VMS and UNIX directories.
	(file_impossible): Handle both VMS and Unix directories.  Track
	whether a VMS format path is needed for the return value.
	* file.c (lookup_file): Check if vmsify is needed; handle UNIX paths.
	* implicit.c (pattern_search): Enable UNIX paths.
	* read.c (parse_file_seq): Enable UNIX paths.
	* remake.c (f_mtime): Fix gpath_search call for VMS paths.
	* rule.c (count_implicit_rule): Enable UNIX paths, Fix VMS paths.
	* vpath.c (selective_vpath_search): Enable UNIX paths.

2014-10-20  John Malmberg  <wb8tyw@qsl.net>

	Update README.VMS and move news to the NEWS file
	* NEWS: Merge in VMS history.
	* README.VMS: Remove VMS history, document current behavior and
	known issues.

2014-10-20  John Malmberg  <wb8tyw@qsl.net>

	[SV 41758]: Fix archive support for VMS.
	Upated to match change to run_make_tests and some future fixes to
	make on VMS.

	* arscan.c: Use ANSI compatible pragmas instead of VAX C extensions.
	* tests/scripts/features/archives: Fix tests to use VMS rules and
	answers when running on VMS and using DCL as a shell.
	* tests/scripts/features/vpath3: Fix epected answer on test when
	run on VMS.
	* tests/scripts/vms/library: (New) Test the VMS library rules that
	are not tested by existing tests.

2014-10-20  John Malmberg  <wb8tyw@qsl.net>

	[SV 42447]: VMS simulate exporting symbols
	This also includes fixing the most of the exit handling code for VMS.

	Self tests:
	 Previously about 94 Tests in 36 categories fail.
	 Now about 45 tests in 22 categories fail.

	Because some tests do not properly clean up, the number of tests that
	fail can vary by one or two test cases between consecutive runs.

	* Makefile.am: Add new VMS files.
	* job.c: add prototype for vms_strsignal().
	* job.c: (child_error): Remove VMS specific code as no longer needed.
	* job.c: (reap_children): The VMS specific code was setting the
	status to 0 instead of setting it to the proper exit status.
	* job.h: Add vms_launch_status to struct child.
	* main.c: (main): Use environment variables for options to use MCR
	* instead of a foreign command, and to always use command files for
	subprocesses.
	For VMS use (set_program_name) routine which is common to ports of
	other GNU packages to VMS to set the program name used internally.
	Use (vms_putenv_symbol) to set up symbols to be visible in child
	programs, including recursive make launched by execve()
	Start of Bash shell detection code for VMS.
	* makefile.com: Need nested_include=none for building on VMS search
	lists.  Add vms_progname, vms_exit, and vms_export_symbol.
	* makefile.vms: Need nested_include=none for building on VMS search
	lists.  Add vms_progname, vms_exit, vms_export_symbol.
	* makeint.h: Make sure non-standard "VMS" macro is defined.  Add
	prototypes for new VMS routines.  Remove VMS-specific failure codes.
	* vmsjobs.c: Add VMS POSIX exit code constants.
	(_is_unixy_shell): Detect Bash shell.
	(vms_strsignal): simulate strsignal() on VMS.
	(vmsHandleChildTerm): fix to properly report failed LIB$SPAWN() exit
	status codes.  Remove code that duplicated code in job.c.
	(child_execute_job): Export environment symbols before spawning a
	child and restore afterward unless option to use command files for
	subprocesses is set.  Improve handling of UNIX null commands ":".
	* vms_exit.c: Provides vms_exit() to detect if an exit code is UNIX
	or VMS, and converts the UNIX code into a VMS exit code.
	* vms_export_symbol.c: Routines to create DCL symbols that work like
	shell aliases or exported shell symbols and clean them up on exit.
	* vms_export_symbol_test.com: Unit test for vms_export_symbol.c
	* vms_progname.c: New file: VMS specific replace for progname.c that
	is used in some GNU projects.

2014-10-20  John Malmberg  <wb8tyw@qsl.net>

	Set up for running tests on VMS.
	* run_make_tests.pl: set $port_type to be 'VMS-DCL' when the test are
	run from the VMS DCL Interpreter.  When the tests are run from GNV
	on VMS, the $port_type will be 'UNIX'.
	* run_make_tests.com: VMS search list support.  This is needed for
	using a search list such as prj_root = lcl_root:,vms_root:,src_root:
	for building and testing.

2014-10-09  Paul Smith  <psmith@gnu.org>

	* configure.ac, NEWS, README.git: Set up for the next release.

2014-10-05  Paul Smith  <psmith@gnu.org>

	GNU Make release 4.1.

2014-10-02  Eli Zaretskii  <eliz@gnu.org>

	Fix Cygwin compilation error.
	* job.c (construct_command_argv_internal) [HAVE_DOS_PATHS]: Fix
	initializer for sh_chars_sh.
	Reported by Denis Excoffier<cygwin@Denis-Excoffier.org>.

2014-10-01  Gisle Vanem  <gvanem@yahoo.no>

	Fix last commit.

	* makeint.h (ftruncate): Define also for __WATCOMC__.

2014-10-01  Eli Zaretskii  <eliz@gnu.org>

	Avoid compilation warnings.
	* main.c (find_and_set_default_shell, main) [WINDOWS32]: Declare
	variables 'const char *' to avoid compiler warnings.
	* job.c (construct_command_argv_internal) [!NDEBUG]: Declare 'end'
	and set it only if NDEBUG is not defined, to avoid compiler
	warnings.

	Treat redirection of standard handles on Windows as it is done on Unix.
	* job.c (start_job_command) [WINDOWS32]: Compute outfd and errfd
	as on Posix platforms, and pass the results to process_easy.
	* function.c (windows32_openpipe) [WINDOWS32]: Accept an
	additional argument ERRFD and use it for redirecting the standard
	error handle passed to the subprocess.
	(func_shell_base) [WINDOWS32]: Pass the computed errfd to
	windows32_openpipe.

2014-09-30  Paul Smith  <psmith@gnu.org>

	Update Copyright statements for 2014.

	* tests/scripts/features/load: Avoid unused variable warnings.

	* loadapi.c (gmk_eval): Use C90 syntax.

2014-09-30  Hartmut Becker  <becker.ismaning@freenet.de>

	* job.c: fix make action continuation lines.
	* vmsjobs.c: fix writing DCL command files when trimming (white
	  spaces and $ signs) especially after a split (command continuation).

2014-09-15  Bernhard Reutner-Fischer  <rep.dot.nop@gmail.com>  (tiny change)

	* configure.ac: Fix spacing in helptext of customs

2014-09-15  Eli Zaretskii  <eliz@gnu.org>

	Support MAKE_TERMOUT and MAKE_TERMERR on MS-Windows.
	* w32/compat/posixfcn.c (isatty, ttyname): New functions.
	* config.h.W32.template (HAVE_TTYNAME): Define.  Add a prototype
	for ttyname.

2014-09-15  Paul Smith  <psmith@gnu.org>

	* loadapi.c (gmk_eval): [SV 43221] Preserve var buff content for eval.

	* main.c, NEWS, doc/make.text: Rename MAKE_TTY* to MAKE_TERM*

2014-09-14  Paul Smith  <psmith@gnu.org>

	* main.c (main): Set MAKE_TTYOUT and MAKE_TTYERR.
	* configure.ac: Test for isatty() and ttyname()
	* makeint.h: provide a substitute for ttyname() if it's not available.
	* config.ami.template, config.h-vms.template, config.h.W32.template:
	define/undefine HAVE_ISATTY/HAVE_TTYNAME macros.
	* NEWS, doc/make.texi: Document these new variables.

2014-09-07  Paul Smith  <psmith@gnu.org>

	* tests/config-flags.pm.in, tests/scripts/features/archives: [SV 43046]
	Use the "ar" program detected by configure when running the test suite.

	* doc/make.texi: Clarify implicit rule lookup of phony targets
	Reported by Frank Heckenbach <f.heckenbach@fh-soft.de>

2014-09-07  Hartmut Becker  <becker.ismaning@freenet.de>

	Fix and enhance VMS library support.
	* ar.c: fix VMS library search for members, which do not have
	suffixes, aka filename extensions.
	* arscan.c: fix time conversion and library callback routines.
	* default.c: more suffixes and automatically create the VMS library
	if it doesn't exists.

	Enhance VMS exporting make environment variables.
	* config.h-vms.template: add feature macro USE_DCL_COM_FILE to always
	write a DCL command file, enabled by default.
	* vmsjobs.c: with USE_DCL_COM_FILE enabled write make variables as DCL
	symbol assignments into the command file.  This enables printing
	directory and make level info for recursive use of make. This also
	enables forced DCL symbol substitution in the actions.

	Fix VMS automatic variable expansion
	* function.c: add VMS code to func_notdir_suffix and func_basename_dir
	to work on comma separated lists; this fixes the expansion of
	$(^D), $(+D) and the F variants for VMS.

	* main.c [VMS]: Say that parallel jobs (-j) are not supported on VMS

	Enhance/fix VMS ONESHELL implementation and command execution
	* job.c, vmsjobs.c: fix some double quote and new line handling;
	implement ONESHELL with writing multiple lines into one DCL command
	procedure; in ONESHELL allow VMS/make internal redirection only on the
	first line; fix the created DCL command procedure, which didn't abort
	on errors; return correct exit status from the DCL command procedure;
	preserve current procedure verification; make the generated command
	procedure more robust.

	Enhance/fix VMS setting of program name, MAKE/MAKE_COMMAND variables
	* default.c, main.c, makeint.h, vmsfunctions.c: prefix argv[0] with
	"mcr " for MAKE/MAKE_COMMAND and set the program name to the image
	filename (without the .exe;version)
	* vmsfunctions.c: remove obsolete code
	* vmsify: use xmalloc

	Enhance/fix VMS exit code handling.
	* commands.c, function.c, hash.c, job.c, main.c, output.c:
	use MAKE exit codes.
	* makeint.h: encode make exit codes so that they are VMS compatible.
	* job.c: check child exit code for VMS style exit codes.
	* vmsjobs.c: save and return VMS style exit code.

	Enhance/fix VMS multi-line support.
	* job.c: split the command line at a newline.
	* default.c, vmsjobs.c: change ECHO variable to a pseudo builtin,
	which ensures that the VMS/DCL ECHO ("write sys$output") is used
	and is correctly quoted.
	* vmsjobs.c: remove unused builtin 'rm'.

	* config_flags_pm.com, [RENAMED test_make.com] run_make_tests.com:
	Moved into tests directory.

	Enhance/fix VMS build environment
	* config.h-vms.template: make sure the CRTL version is known
	* makefile.com: always compile/link the guile module, remove VAXCRTL
	parameter, new LIST parameter
	* makefile.vms: always compile/link the guile module, use more
	complete dependencies
	* prepare_vms.com: helper to create a VMS config file when building
	from a snapshot of the repository

2014-09-07  Paul Smith  <psmith@gnu.org>

	* configure.ac, maintMakefile, w32/Makefile.am: Fix autotools issues.
	Reported by Paul Eggert <eggert@cs.ucla.edu>

2014-08-30  Eli Zaretskii  <eliz@gnu.org>

	Change the order of "makefile" and "Makefile" to match the manual.

	Fix regression with "makefile" not being found on MS-Windows.
	* read.c (read_all_makefiles) [WINDOWS32]: Recognize "makefile",
	all-lowercase, as a makefile.  Reported by Michael Waeber
	<waeber@gmail.com>.

2014-07-16  Eli Zaretskii  <eliz@gnu.org>

	Fix compilation on MS-Windows.
	* makeint.h [WINDOWS32]: Don't declare 'program' as 'const char *',
	since it is modified in 'main'.

2014-07-12  Eli Zaretskii  <eliz@gnu.org>

	[SV 42695] Fix compilation error on MS-Windows.
	* main.c [WINDOWS32]: Don't declare 'program' as 'const char *',
	since it is modified in 'main'.

2014-07-12  Jonny Grant  <jg@jguk.org>  (tiny change)

	Fix defalt_makefiles[] for MS-Windows.
	* read.c (read_all_makefiles) [WINDOWS32]: Remove the redundant
	"makefile" and add "makefile.mak".

2014-07-07  Fredrik Fornwall  <fredrik@fornwall.net>  (tiny change)

	* arscan.c [ANDROID]: Android has no ar.h but supports archives.

2014-07-07  Paul Smith  <psmith@gnu.org>

	* read.c (eval): [SV 41677] Correct test for TAB vs. 8 spaces.

2014-07-07  Piotr Jaroszynski  <pjaroszynski@nvidia.com>  (tiny change)

	* output.c (pump_from_tmp): [SV 42378] Flush the output file regularly.

2014-07-07  John Malmberg  <wb8tyw@qsl.net>

	Update the regression test harness to support VMS.
	* config_flags_pm.com, test_make.com: set up and run the regression
	test environment on VMS.
	* tests/run_make_tests.pl [VMS]: Use an alternate rmdir()
	implementation on VMS.
	(run_make_with_options) [VMS]: Provide VMS-specific quoting and shell
	invocations.
	(set_more_defaults) [VMS]: Set default values when running on VMS.
	* tests/test_driver.pl (vms_get_process_logicals) [VMS]: Retrieve the
	proper values from %ENV on VMS.
	(resetENV) [VMS]: Use it.
	(toplevel) [VMS]: Fix a bug with opendir() on some logical_devices.
	(compare_output) [VMS]: Convert VMS test output to a "standard" format.
	(_run_command) [VMS]: Handle signals and exit codes the VMS way.
	(remove_directory_tree_inner) [VMS]: Unlink all versions of the file.

2014-07-07  Paul Smith  <psmith@gnu.org>

	* various: Assume ISO C89-compliant free() implementation.

	* maintMakefile, various: Improve constification of the codebase.

	[SV 41983] Support omitting the text argument to $(file ...)
	Reported by Tim Murphy <tnmurphy@gmail.com>
	* function.c (func_file): Only write TEXT if it is not NULL.
	* NEWS, doc/make.texi: Document the new feature
	* tests/scripts/functions/file: Verify that the no-text version of
	  $(file ...) works and doesn't add a newline.

2014-05-13  Jacques Germishuys  <jacques.germishuys@gmail.com>

	NMakefile.template ($(OUTDIR)/posixfcn.obj): Fix a typo.

2014-05-01  Paul Smith  <psmith@gnu.org>

	[SV 42249] Propagate correct rule status results.
	* remake.c (update_file, update_file_1, check_dep): Return an enum
	  update_status value instead of an int, and keep the highest value we
	  find as we walk the graph so that the ultimate status is correct.
	* tests/scripts/options/dash-q: Add a test for updating prerequisites.

2014-02-08  Paul Smith  <psmith@gnu.org>

	* Rename MAP_PATHSEP to MAP_DIRSEP.

	* configure.ac: Fixup for newer autoconf/automake

2014-02-08  Ray Donnelly  <mingw.android@gmail.com>  (tiny change)

	* output.c: Ensure space for final nul byte in fmtbuf.

2014-02-07  Gisle Vanem  <gvanem@yahoo.no>  (tiny change)

	Improve error reporting in the Windows port when env size is too large.
	w32/subproc/misc.c (arr2envblk): Compute and return the size of
	the environment passed to child process.

	w32/subproc/sub_proc.c (process_begin): If the call to
	CreateProcess failed with EINVAL, and the required environment
	size was larger than 32KB, assume it's a Windows XP limitation,
	and display an error message to that effect.

	w32/subproc/proc.h (arr2envblk): Update prototype.

2014-02-01  Paul Smith  <psmith@gnu.org>

	* job.c (set_child_handler_action_flags): [SV 41341]
	Ensure signal handler is in place before alarm(1).

2014-01-20  Alan Hourihane  <alanh@fairlite.co.uk>  (tiny change)

	* configure.ac: [SV 40790] Fix load autoconf variables.

2014-01-17  Pavel Fedin  <p.fedin@samsung.com>  (tiny change)

	Allow the EMX build to use output_sync.
	job.c (start_job_command): Move the child output diversion out
	of non-EMX branch.
	[__EMX__]: Don't use fixed FD_STDOUT and FD_STDERR in the call to
	child_execute_job.

2014-01-12  Paul Smith  <psmith@gnu.org>

	* commands.c: [SV 40789] Remove unneeded header dlfcn.h

	* main.c (die): Close output_context AND make_sync.
	die() can be invoked inside a separate output_context, if the
	$(error ...) function is expanded as part of a recipe.

2014-01-11  Pavel Fedin  <p.fedin@samsung.com>  (tiny change)

	Fix .LIBPATTERNS for MS-Windows builds.
	default.c (.LIBPATTERNS) [__CYGWIN__ || WINDOWS32]: Provide
	library patterns for MS-Windows.

2013-11-27  Paul Smith  <psmith@gnu.org>

	* w32/*: Remove TABs from the source code.
	I know whitespace commits are annoying, but having these TABs is
	causing me to miss things when I search through the code.  This
	doesn't try to change the w32 code to meet GNU coding standards.

	* main.c (decode_env_switches): Ensure we have enough space.
	Reported (with patch) by Gerte Hoogewerf <g.hoogewerf@gmail.com>

2013-11-27  Stephan T. Lavavej  <stl@nuwen.net>  (tiny change)

	Solve some Windows build issues.
	* main.c (main): Use ONS(), not OSN().
	(prepare_mutex_handle_string) [WINDOWS32]: Use %Ix formatting to
	support both 32bit and 64bit systems.
	* job.c (free_child, new_job): Use ONS(), not OSN().
	* w32/subproc/w32err.c (map_windws32_error_to_string): Use O() when
	calling fatal().

2013-11-24  Paul Smith  <psmith@gnu.org>

	* features/loadapi (test_expand): Allocate memory for the nul byte.

	* load.c (load_file): Reset the name length minus the symbol.

	* read.c (unescape_char): Use memmove() for overlapping memory.

	Fix memory leak during environment option decoding.
	* main.c (decode_switches): Always make a copy of option arguments.
	(decode_env_switches): Use a stack buffer to convert environment
	switches for parsing.

	[SV 40226] Add a new type of switch: single-string options
	* main.c (struct command_switch): Change the "string" types to "strlist"
	and make "string" be a single-valued string instead.
	(output_sync_option, jobserver_fds, sync_mutex): Change to string type.
	(decode_output_sync_flags): Handle single strings instead of lists.
	(prepare_mutex_handle_string): Ditto.
	(main): Ditto.
	(clean_jobserver): Ditto.
	(init_switches): Handle the new type.
	(decode_switches): Ditto.
	(define_makeflags): Ditto.

2013-11-23  Daniel Richard G  <skunk@iskunk.org>  (tiny change)

	* load.c: [SV 40515] Define RTLD_GLOBAL if not set.

2013-11-23  Paul Smith  <psmith@gnu.org>

	[SV 40361] Don't use vsnprintf(), which is an ISO C99 function.
	* output.c (error, fatal, message): Take an extra argument specifying
	how many bytes are used by the formatted arguments.
	(get_buffer): New function that allocates the requested buffer size.
	Remove msc_vsnprintf(), vfmtconcat(), and fmtconcat() as unneeded.
	* makeint.h: Declare various helper macros for generating output.
	* *.c: Change all error(), fatal(), message() calls to use the macros,
	or pass the extra length argument directly.

2013-10-27  Paul Smith  <psmith@gnu.org>

	* makeint.h (STOP_SET): [SV 40371] Cast to unsigned char.
	* tests/scripts/misc/utf8: Test variable names with characters >127.
	Fix suggested by Robert Bogomip <bob.bogo@milohedge.com>

2013-10-24  Gerte Hoogewerf  <g.hoogewerf@gmail.com>

	Fix MS Visual Studio NET2003 build.
	* make_msvc_net2003.vcproj: Do not exclude guile.c from compilation.

2013-10-23  Christian Boos  <cboos@edgewall.org>

	Fix SV bug #40227 with respect to stack size set for the MSVC build.
	* NMakefile.template (/STACK): Increase to 0x400000, mainly for
	the 64-bit builds.  Fixes SV bug #40227.
	(guile): Uncomment.

2013-10-23  Eli Zaretskii  <eliz@gnu.org>

	Fix the MS-Windows build: now guile.c must always be compiled in.
	* build_w32.bat: Always compile guile.c and link against guile.o.
	  Reported by Alexey Pavlov <alexpux@gmail.com>.

	* makeint.h (guile_gmake_setup): Define prototype unconditionally,
	to avoid compiler warnings.

2013-10-22  Eli Zaretskii  <eliz@gnu.org>

	Fix Savannah bug #31150 with failures due to setting window title.
	* sub_proc.c (process_begin): Don't set startInfo.lpTitle, it
	reportedly causes SV bug #31150, and according to MSDN it's a
	no-no.

	Fix Savannah bug 40241 with Unixy file names as commands to MSYS shell.
	* sub_proc.c: Include filedef.h and variable.h.
	(process_begin): If exec_path was not found, but its first
	character is '/', assume there's some shell magic, and invoke the
	command through '$(SHELL) -c "COMMAND"'.  Fixes SV bug#40241.
	(make_command_line): Kludgey feature: if full_exec_path is "-c",
	assume that argv[0] is not to be skipped, as it holds the command
	string to be passed to the shell.

2013-10-20  Paul Smith  <psmith@gnu.org>

	* glob.c (glob) [SV 18123]: Cherry-pick glibc fix
	Apply commit a471e96a5352a5f0bde6d32dd36d33524811a2b1 from
	git://sourceware.org/git/glibc.git to fix
	https://sourceware.org/bugzilla/show_bug.cgi?id=10278

	* read.c (record_files): [SV 33034] Change fatal() to error()
	Allows deprecated syntax.  However we don't guarantee this syntax
	will continue to be legal in the future.
	Change suggested by David Boyce <david.s.boyce@gmail.com>

	* README.git: Add some missing release steps.

2013-10-19  Paul Smith  <psmith@gnu.org>

	[SV 40240] Use configure info to build load test shared libs
	* tests/config-flags.pm.in: A new file containing variable assignments
	for the test suite; these variables are set by configure to contain
	the values detected there for compilers, flags, etc.
	* tests/run_make_tests.pl: Require the config-flags.pm file
	* tests/scripts/features/load, tests/scripts/features/loadapi: Use the
	configure-provided values when building the shared test library.
	* configure.ac: Replace tests/config-flags.pm.in
	* Makefile.am: Make sure tests/config-flags.pm is up to date

	* maintMakefile (checkcfg.%): Add testing of build.sh

	[SV 40254] Modify build.sh to work properly with Guile support.
	* guile.c (guile_gmake_setup) [HAVE_GUILE]: Define a stub function
	when Guile support is not enabled.
	* main.c (main) [HAVE_GUILE]: Always invoke guile_gmake_setup().
	* Makefile.am: Make guile.c standard, not optional.
	* build.template: Add the Guile compiler and linker flags.

	* maintMakefile: Accept variable overrides from the environment.

	* NEWS: Fix version so we can build a distfile.

	* read.c (eval): Avoid GCC warning to add braces.

	* GNUMAKEFLAGS: Remove -O so it passes in NO_OUTPUT_SYNC mode.

2013-10-18  Christian Boos  <cboos@edgewall.org>

	Fix initialization of stringlist variables for jobserver_fds and sync_mutex.
	 (tiny change)

	 main.c (prepare_mutex_handle_string, main): Initialize
	 stringlist variables with at least 2 members, as one member is not
	 currently supported.

2013-10-18  Eli Zaretskii  <eliz@gnu.org>

	Fix MinGW64 problem with non-compliant vsnprintf.
	 makeint.h (__USE_MINGW_ANSI_STDIO) [__MINGW64_VERSION_MAJOR]:
	 Define for MinGW64, to force it to use an ANSI-compliant
	 implementation of vsnprintf.  Reported by Christian Boos
	 <cboos@edgewall.org>.

	Fix the MSVC build on MS-Windows.
	 output.c (vsnprintf) [_MSC_VER]: Define, instead of defining
	 snprintf, which isn't used.  Reported by Christian Boos
	 <cboos@edgewall.org>.
	 NMakefile.template (OBJS): Add load.obj and posixfcn.obj.
	 ($(OUTDIR)/pathstuff.obj): New dependency.
	 Suggested by Christian Boos <cboos@edgewall.org>.

2013-10-13  Paul Smith  <psmith@gnu.org>

	[SV 40139] Modify "missing separator" for better translation

	Add support for updating the GNU make web pages.
	Add makefile rules for updating the http://www.gnu.org/software/make
	web pages, including the online GNU make manual.

	Convert to auto-generated ChangeLog files.
	Rename existing ChangeLog files so they won't be distributed.
	Add targets to maintMakefile to generate ChangeLog from the Git
	repository.  This will require a version of gnulib be available.
	Because ChangeLog is auto-generated, we have to switch our
	automake mode to "foreign" or it will complain and fail.

	Set up for the next release.