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dnl
dnl configure.ac --- autoconf input file for gawk
dnl
dnl Copyright (C) 1995-2014 the Free Software Foundation, Inc.
dnl
dnl This file is part of GAWK, the GNU implementation of the
dnl AWK Programming Language.
dnl
dnl GAWK is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl GAWK is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dnl
dnl Process this file with autoconf to produce a configure script.
AC_INIT([GNU Awk], 4.1.1, bug-gawk@gnu.org, gawk)
# This is a hack. Different versions of install on different systems
# are just too different. Chuck it and use install-sh.
#
# If the user supplies $INSTALL, figure they know what they're doing.
#
# With Autoconf 2.5x, this needs to come very early on, but *after*
# the INIT macro. Sigh.
if test "x$INSTALL" = "x"
then
INSTALL="$srcdir/install-sh -c"
export INSTALL
fi
AC_PREREQ(2.69)
AM_INIT_AUTOMAKE([1.13 dist-xz dist-lzip])
AC_CONFIG_MACRO_DIR([m4])
dnl Additional argument stuff
AC_ARG_WITH(whiny-user-strftime, [ --with-whiny-user-strftime Force use of included version of strftime for deficient systems],
if test "$withval" = yes
then
AC_DEFINE(USE_INCLUDED_STRFTIME, 1,
[force use of our version of strftime])
fi
)
AC_ARG_ENABLE([lint], [ --disable-lint Disable gawk lint checking],
if test "$enableval" = no
then
AC_DEFINE(NO_LINT, 1, [disable lint checks])
fi
)
AC_CANONICAL_HOST
AC_USE_SYSTEM_EXTENSIONS
dnl checks for programs
AC_PROG_EGREP
AC_PROG_YACC
AC_PROG_LN_S
AC_PROG_CC
AC_PROG_CPP
AC_OBJEXT
AC_EXEEXT
AC_PROG_INSTALL
AC_PROG_MAKE_SET
# This is mainly for my use during testing and development.
# Yes, it's a bit of a hack.
AC_MSG_CHECKING([for special development options])
if test -f $srcdir/.developing
then
# add other debug flags as appropriate, save GAWKDEBUG for emergencies
CFLAGS="$CFLAGS -DARRAYDEBUG -DYYDEBUG"
if grep dbug $srcdir/.developing
then
CFLAGS="$CFLAGS -DDBUG"
LIBS="$LIBS dbug/libdbug.a"
fi
# turn on compiler warnings if we're doing development
# enable debugging using macros also
if test "$GCC" = yes
then
CFLAGS="$CFLAGS -Wall -fno-builtin -g3 -gdwarf-2"
fi
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
CFLAGS="$CFLAGS -DNDEBUG" # turn off assertions
fi
AC_SUBST(CFLAGS)
# shared library suffix for dynamic loading:
AC_SUBST(acl_shlibext)
# default shared library location
AC_SUBST([pkgextensiondir], ['${pkglibdir}'])
dnl checks for systems
AC_ZOS_USS
AC_ISC_POSIX
AC_SYS_LARGEFILE
GAWK_AC_AIX_TWEAK
GAWK_AC_LINUX_ALPHA
if test "$ISC" = 1 # will be set by test for ISC
then
dnl need -D_SYSV3 for ISC
CFLAGS="$CFLAGS -D_SYSV3"
fi
dnl check for systems where libc is borked for regex handling
case $host_os in
mirbsd*)
AC_DEFINE([LIBC_IS_BORKED], 1, [libc is broken for regex handling])
;;
esac
dnl Set the programming language for checks. Fortunately,
dnl this only needs to be set once, since everything is in C.
AC_LANG([C])
dnl initialize GNU gettext
AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.18.1])
AM_LANGINFO_CODESET
gt_LC_MESSAGES
dnl checks for header files
AC_CHECK_HEADERS(arpa/inet.h fcntl.h limits.h locale.h libintl.h mcheck.h \
netdb.h netinet/in.h stdarg.h stddef.h string.h \
sys/ioctl.h sys/param.h sys/socket.h sys/time.h unistd.h \
termios.h stropts.h wchar.h wctype.h)
AC_HEADER_STDC
AC_HEADER_STDBOOL
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
if test "$ac_cv_header_string_h" = yes
then
AC_CHECK_HEADERS(memory.h)
else
AC_CHECK_HEADERS(strings.h)
fi
dnl Check cross compiling
AM_CONDITIONAL([TEST_CROSS_COMPILE], [test "x$build_alias" != "x$host_alias"])
dnl checks for typedefs
AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_SIZE_T
AC_TYPE_GETGROUPS
AC_TYPE_LONG_LONG_INT
AC_TYPE_UNSIGNED_LONG_LONG_INT
AC_TYPE_INTMAX_T
AC_TYPE_UINTMAX_T
AC_CHECK_TYPE(ssize_t, int)
AC_CHECK_SIZEOF(unsigned int)
AC_CHECK_SIZEOF(unsigned long)
dnl see if time_t is defined in <sys/types.h>
AC_TRY_COMPILE([#include <sys/types.h>],[
time_t foo;
foo = 0;
],
AC_DEFINE(TIME_T_IN_SYS_TYPES_H, 1,
[some systems define this type here]))
dnl check for wctype_t in <wctype.h>
AC_TRY_COMPILE([#include <wctype.h>],[
wctype_t foo;
foo = 0;
],
AC_DEFINE(HAVE_WCTYPE_T, 1, [systems should define this type here]))
dnl check for wint_t in <wctype.h>
AC_TRY_COMPILE([#include <wctype.h>],[
wint_t foo;
foo = 0;
],
AC_DEFINE(HAVE_WINT_T, 1, [systems should define this type here]))
dnl check for sockaddr_storage
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/socket.h>],[
struct sockaddr_storage foo;
],
AC_DEFINE(HAVE_SOCKADDR_STORAGE, 1, [newer systems define this type here]))
dnl Borrwed from rsync, thanks to to Jim Meyering.
dnl Check for socklen_t: historically on BSD it is an int, and in
dnl POSIX 1g it is a type of its own, but some platforms use different
dnl types for the argument to getsockopt, getpeername, etc. So we
dnl have to test to find something that will work.
dnl This is no good, because passing the wrong pointer on C compilers is
dnl likely to only generate a warning, not an error.
AC_DEFUN([TYPE_SOCKLEN_T],
[
AC_CHECK_TYPE([socklen_t], ,[
AC_MSG_CHECKING([for socklen_t equivalent])
AC_CACHE_VAL([rsync_cv_socklen_t_equiv],
[
# Systems have either "struct sockaddr *" or
# "void *" as the second argument to getpeername
rsync_cv_socklen_t_equiv=
for arg2 in "struct sockaddr" void; do
for t in int size_t unsigned long "unsigned long"; do
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
int getpeername (int, $arg2 *, $t *);
],[
$t len;
getpeername(0,0,&len);
],[
rsync_cv_socklen_t_equiv="$t"
break
])
done
done
if test "x$rsync_cv_socklen_t_equiv" = x; then
dnl Some systems get this. Default to int. -- ADR
dnl AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
rsync_cv_socklen_t_equiv=int
fi
])
AC_MSG_RESULT($rsync_cv_socklen_t_equiv)
AC_DEFINE_UNQUOTED(socklen_t, $rsync_cv_socklen_t_equiv,
[type to use in place of socklen_t if not defined])],
[#include <sys/types.h>
#include <sys/socket.h>])
])
TYPE_SOCKLEN_T
dnl Check for C11 _Noreturn
GAWK_AC_NORETURN
dnl checks for functions
AC_FUNC_MKTIME
case "$ac_cv_func_working_mktime" in
yes) AC_DEFINE(HAVE_MKTIME, 1, [we have the mktime function])
;;
esac
AC_CHECK_FUNC(getaddrinfo, [AC_DEFINE(HAVE_GETADDRINFO, 1, [have getaddrinfo])],
[AC_CHECK_LIB(socket, getaddrinfo,
[AC_DEFINE(HAVE_GETADDRINFO, 1,
[have getaddrinfo])])])
AC_CHECK_LIB(m, fmod)
AC_CHECK_LIB(m, isinf)
AC_CHECK_LIB(m, ismod)
dnl Don't look for libsigsegv on OSF/1, gives us severe headaches
case $host_os in
osf1) : ;;
*)
gl_LIBSIGSEGV
;;
esac
# Need the check for mkstemp and tmpfile for missing_d/snprintf.c.
AC_CHECK_FUNCS(atexit btowc fmod getgrent getgroups grantpt \
isascii iswctype iswlower iswupper mbrlen \
memcmp memcpy memcpy_ulong memmove memset \
memset_ulong mkstemp posix_openpt setenv setlocale setsid snprintf strchr \
strerror strftime strncasecmp strcoll strtod strtoul \
system tmpfile towlower towupper tzset usleep wcrtomb \
wcscoll wctype)
dnl this check is for both mbrtowc and the mbstate_t type, which is good
AC_FUNC_MBRTOWC
dnl check for dynamic linking
dnl This is known to be very primitive
AC_ARG_ENABLE([extensions],
[AS_HELP_STRING([--disable-extensions], [disable dynamic extensions (default is detect)])])
if test "x$enable_extensions" != "xno"; then
extensions_supported=no
dnl On MirBSD (and probably other systems), don't even try.
case $host_os in
mirbsd* | openedition*) # OS/390 z/OS POSIX layer
cat << \EOF > extension/Makefile
all dist check clean distclean install uninstall distcheck:
@exit 0
EOF
;;
*)
AC_CHECK_HEADER(dlfcn.h,
[
# Check this separately. Some systems have dlopen
# in libc. Notably freebsd and cygwin.
# HP-NSK has it in zrldsrl
AC_SEARCH_LIBS(dlopen, dl zrldsrl, gawk_have_dlopen=yes, gawk_have_dlopen=no)
# Only do DYNAMIC if we have the lib. z/OS (some versions) have
# the header but not the lib, apparently
if test "$gawk_have_dlopen" = yes
then
extensions_supported=yes
AC_DEFINE([DYNAMIC], 1, [dynamic loading is possible])
# Add -export-dynamic for old extensions. Only works for GCC
if test "$GCC" = yes; then
case $host_os in
linux*|freebsd*)
LDFLAGS="$LDFLAGS -export-dynamic"
;;
esac
fi
fi
])
;;
esac
if test "x$enable_extensions$extensions_supported" = "xyesno"; then
AC_MSG_ERROR([extension support requested, but unavailable])
fi
enable_extensions=$extensions_supported
fi
dnl check for how to use getpgrp
dnl have to hardwire it for VMS POSIX. Sigh.
dnl ditto for BeOS, OS/2, and MS-DOS.
case $host_os in
vms*|beos*|os2*|msdos)
AC_DEFINE(GETPGRP_VOID, 1,
[Define to 1 if the getpgrp function requires zero arguments.])
;;
*) AC_FUNC_GETPGRP
;;
esac
dnl check for printf %F format
AC_MSG_CHECKING([for printf %F format])
AC_RUN_IFELSE([
AC_LANG_SOURCE([
#include <stdio.h>
int main()
{
char buf[[100]];
sprintf(buf, "%F", 123.45);
if (strcmp(buf, "123.450000") == 0)
return 0;
else
return 1;
}
])],
has_f_format=yes,
has_f_format=no,
has_f_format=no dnl Cross-compiling, assuming the worst.
)
if test "$has_f_format" = yes; then
AC_DEFINE(PRINTF_HAS_F_FORMAT, 1, [Define to 1 if *printf supports %F format])
fi
AC_MSG_RESULT($has_f_format)
dnl check for sockets
GAWK_AC_LIB_SOCKETS
dnl check for readline support
GAWK_CHECK_READLINE
dnl check for mpfr support
GNUPG_CHECK_MPFR
dnl checks for structure members
AC_CHECK_MEMBERS([struct stat.st_blksize])
AC_STRUCT_TM
AC_STRUCT_TIMEZONE
dnl checks for compiler characteristics
AC_C_CHAR_UNSIGNED
AC_C_CONST
AC_C_RESTRICT
AC_C_INLINE
AC_C_STRINGIZE
AC_CONFIG_HEADERS([config.h:configh.in])
AH_BOTTOM([#include "custom.h"])
dnl Crude but small hack to make plug-ins work on Mac OS X
dnl We should really use the libtool value for shrext_cmds, but that
dnl is not available here, since we do not use libtool at the top level.
case $acl_shlibext in
dylib) GAWKLIBEXT=so ;; # MacOS uses .dylib for shared libraries, but libtool uses .so for modules
*) GAWKLIBEXT=$acl_shlibext ;;
esac
AC_SUBST(GAWKLIBEXT)
AC_CONFIG_FILES(Makefile
awklib/Makefile
doc/Makefile
po/Makefile.in
test/Makefile)
if test "x$enable_extensions" = "xyes"; then
AC_CONFIG_SUBDIRS(extension)
fi
AC_OUTPUT
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