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|
dnl -*- mode: shell-script; sh-indentation: 2; -*-
dnl Process this file with autoconf to produce a configure script.
AC_INIT([nettle], [2.7.1], [nettle-bugs@lists.lysator.liu.se])
AC_PREREQ(2.61)
AC_CONFIG_SRCDIR([arcfour.c])
# Needed to stop autoconf from looking for files in parent directories.
AC_CONFIG_AUX_DIR([.])
AC_CONFIG_HEADER([config.h])
LIBNETTLE_MAJOR=4
LIBNETTLE_MINOR=7
LIBHOGWEED_MAJOR=2
LIBHOGWEED_MINOR=5
AC_CANONICAL_HOST
# Command line options
AC_ARG_WITH(include-path,
AC_HELP_STRING([--with-include-path], [A colon-separated list of directories to search for include files]),,
[with_include_path=''])
if test x$with_include_path != x ; then
CPPFLAGS="$CPPFLAGS -I`echo $with_include_path | sed 's/:/ -I/g'`"
fi
AC_ARG_WITH(lib-path,
AC_HELP_STRING([--with-lib-path], [A colon-separated list of directories to search for libraries]),,
[with_lib_path=''])
if test x$with_lib_path != x ; then
LDFLAGS="$LDFLAGS -L`echo $with_lib_path | sed 's/:/ -L/g'`"
fi
AC_ARG_ENABLE(public-key,
AC_HELP_STRING([--disable-public-key], [Disable public key algorithms]),,
[enable_public_key=yes])
AC_ARG_ENABLE(assembler,
AC_HELP_STRING([--disable-assembler],[Disable assembler code]),,
[enable_assembler=yes])
AC_ARG_ENABLE(static,
AC_HELP_STRING([--disable-static], [Do not build any static library]),,
[enable_static=yes])
AC_ARG_ENABLE(shared,
AC_HELP_STRING([--disable-shared], [Do not build any shared library]),,
[enable_shared=yes])
AC_ARG_ENABLE(pic,
AC_HELP_STRING([--disable-pic],
[Do not try to compile library files as position independent code]),,
[enable_pic=yes])
AC_ARG_ENABLE(openssl,
AC_HELP_STRING([--disable-openssl], [Do not include openssl glue in the benchmark program]),,
[enable_openssl=yes])
AC_ARG_ENABLE(gcov,
AC_HELP_STRING([--enable-gcov], [Instrument for gcov (requires a modern gcc)]),,
[enable_gcov=no])
AC_ARG_ENABLE(documentation,
AC_HELP_STRING([--disable-documentation], [Omit building and installing the documentation. (default=auto)]),,
[enable_documentation=auto])
AC_ARG_ENABLE(arm-neon,
AC_HELP_STRING([--enable-arm-neon], [Enable ARM Neon assembly. (default=auto)]),,
[enable_arm_neon=auto])
LSH_RPATH_INIT([`echo $with_lib_path | sed 's/:/ /g'` \
`echo $exec_prefix | sed "s@^NONE@$prefix/lib@g" | sed "s@^NONE@$ac_default_prefix/lib@g"` \
/usr/local/lib /sw/local/lib /sw/lib \
/usr/gnu/lib /opt/gnu/lib /sw/gnu/lib /usr/freeware/lib /usr/pkg/lib])
# Checks for programs.
AC_PROG_CC
# When $CC foo.c -o foo creates both foo and foo.exe, autoconf picks
# up the foo.exe and sets exeext to .exe. That is correct for cygwin,
# which has some kind of magic link from foo to foo.exe, but not for
# rntcl. A better check for the cygwin case would check if the
# contents of foo and foo.exe are equal; in the rntcl case, foo is a
# sh script, and foo.exe is a windows executable.
if test "x$CC" = xrntcl ; then
AC_MSG_NOTICE([Compiling with rntcl; clearing EXEEXT and disabling assembler])
ac_exeext=''
ac_cv_exeext=''
EXEEXT=''
enable_assembler=no
fi
# Used by the testsuite only
AC_PROG_CXX
AC_LANG_PUSH(C++)
AC_TRY_COMPILE([],[return 0;],[IF_CXX=''], [IF_CXX='#'])
AC_SUBST([IF_CXX])
AC_LANG_POP
AC_PROG_MAKE_SET
AC_PROG_RANLIB
AC_CHECK_TOOL(NM, nm, strings)
# Used only for the GNU-stack configure test.
AC_CHECK_TOOL(OBJDUMP, objdump, false)
AC_CHECK_TOOL(AR, ar, false)
if test "x$ac_cv_prog_cc_stdc" = xno ; then
AC_ERROR([the C compiler doesn't handle ANSI-C]) #'
fi
AC_PROG_INSTALL
# According to the autoconf manual, needs install-sh from
# autoconf-2.60 or automake-1.10 to avoid races.
AC_PROG_MKDIR_P
AC_PROG_LN_S
# Compiler tests for the build system
GMP_PROG_CC_FOR_BUILD
GMP_PROG_EXEEXT_FOR_BUILD
LSH_DEPENDENCY_TRACKING
if test x$enable_dependency_tracking = xyes ; then
# Since the makefiles use include to get the dependency files, we must
# make sure that the files exist. We generate some more files than are
# actually needed.
AC_CONFIG_COMMANDS([dummy-dep-files],
[(cd "$srcdir" && find . '(' -name '*.c' -o -name '*.cxx' ')' -print) \
| sed 's/\.c\(xx\)\{0,1\}$//' | (while read f; do echo > "$f.o.d"; echo > "$f.po.d"; done)
])
fi
# Figure out ABI. Currently, configurable only by setting CFLAGS.
ABI=standard
case "$host_cpu" in
[x86_64 | amd64])
AC_TRY_COMPILE([
#if defined(__x86_64__) || defined(__arch64__)
#error 64-bit x86
#endif
], [], [
ABI=32
], [
ABI=64
])
;;
*sparc*)
AC_TRY_COMPILE([
#if defined(__sparcv9) || defined(__arch64__)
#error 64-bit sparc
#endif
], [], [
ABI=32
], [
ABI=64
])
;;
esac
if test "x$ABI" != xstandard ; then
AC_MSG_NOTICE([Compiler uses $ABI-bit ABI. To change, set CC.])
if test "$libdir" = '${exec_prefix}/lib' ; then
# Try setting a better default
case "$host_cpu:$host_os:$ABI" in
*:solaris*:32|*:sunos*:32)
libdir='${exec_prefix}/lib'
;;
*:solaris*:64|*:sunos*:64)
libdir='${exec_prefix}/lib/64'
;;
# Linux conventions are a mess... According to the Linux File
# Hierarchy Standard, all architectures except IA64 puts 32-bit
# libraries in lib, and 64-bit in lib64. Some distributions,
# e.g., Fedora and Gentoo, adhere to this standard, while at
# least Debian has decided to put 64-bit libraries in lib and
# 32-bit libraries in lib32.
# We try to figure out the convention, except if we're cross
# compiling. We use lib${ABI} if /usr/lib${ABI} exists and
# appears to not be a symlink to a different name.
*:linux*:32|*:linux*:64)
if test "$cross_compiling" = yes ; then
AC_MSG_WARN([Cross compiling for linux. Can't guess if libraries go in lib${ABI} or lib.]); dnl '
else
# The dash builtin pwd tries to be "helpful" and remember
# symlink names. Use -P option, and hope it's portable enough.
test -d /usr/lib${ABI} \
&& (cd /usr/lib${ABI} && pwd -P | grep >/dev/null "/lib${ABI}"'$') \
&& libdir='${exec_prefix}/'"lib${ABI}"
fi
;;
# On freebsd, it seems 32-bit libraries are in lib32,
# and 64-bit in lib. Don't know about "kfreebsd", does
# it follow the Linux fhs conventions?
*:freebsd*:32)
libdir='${exec_prefix}/lib32'
;;
*:freebsd*:64)
libdir='${exec_prefix}/lib'
;;
*)
AC_MSG_WARN([Don't know where to install $ABI-bit libraries on this system.]); dnl '
esac
AC_MSG_NOTICE([Libraries to be installed in $libdir.])
fi
fi
# Select assembler code
asm_path=
if test "x$enable_assembler" = xyes ; then
case "$host_cpu" in
[i?86* | k[5-8]* | pentium* | athlon])
asm_path=x86
;;
[x86_64 | amd64])
if test "$ABI" = 64 ; then
asm_path=x86_64
else
asm_path=x86
fi
;;
*sparc*)
if test "$ABI" = 64 ; then
asm_path=sparc64
else
asm_path=sparc32
fi
;;
armv6* | armv7*)
NETTLE_CHECK_ARM_NEON
asm_path="arm/v6 arm"
if test "x$enable_arm_neon" = xyes ; then
asm_path="arm/neon $asm_path"
fi
;;
arm*)
asm_path=arm
;;
*)
enable_assembler=no
;;
esac
fi
# Files which replace a C source file (or otherwise don't correspond
# to a new object file).
asm_replace_list="aes-encrypt-internal.asm aes-decrypt-internal.asm \
arcfour-crypt.asm camellia-crypt-internal.asm \
md5-compress.asm memxor.asm \
salsa20-crypt.asm salsa20-core-internal.asm \
serpent-encrypt.asm serpent-decrypt.asm \
sha1-compress.asm sha256-compress.asm sha512-compress.asm \
sha3-permute.asm umac-nh.asm umac-nh-n.asm machine.m4"
# Assembler files which generate additional object files if they are used.
asm_optional_list=""
if test "x$enable_public_key" = "xyes" ; then
asm_optional_list="ecc-192-modp.asm ecc-224-modp.asm ecc-256-redc.asm \
ecc-384-modp.asm ecc-521-modp.asm"
fi
OPT_ASM_SOURCES=""
asm_file_list=""
if test "x$enable_assembler" = xyes ; then
if test -n "$asm_path"; then
AC_MSG_NOTICE([Looking for assembler files in $asm_path.])
for tmp_f in $asm_replace_list ; do
for asm_dir in $asm_path ; do
if test -f "$srcdir/$asm_dir/$tmp_f"; then
asm_file_list="$asm_file_list $tmp_f"
AC_CONFIG_LINKS($tmp_f:$asm_dir/$tmp_f)
break
fi
done
done
dnl Workaround for AC_CONFIG_LINKS, which complains if we use the
dnl same destination argument $tmp_f multiple times.
for tmp_o in $asm_optional_list ; do
for asm_dir in $asm_path ; do
if test -f "$srcdir/$asm_dir/$tmp_o"; then
asm_file_list="$asm_file_list $tmp_o"
AC_CONFIG_LINKS($tmp_o:$asm_dir/$tmp_o)
while read tmp_func ; do
AC_DEFINE_UNQUOTED(HAVE_NATIVE_$tmp_func)
eval HAVE_NATIVE_$tmp_func=yes
done <<EOF
[`sed -n 's/[^ ]*PROLOGUE(_*\(nettle_\)*\([^)]*\)).*$/\2/p' < "$srcdir/$asm_dir/$tmp_o"`]
EOF
OPT_ASM_SOURCES="$OPT_ASM_SOURCES $tmp_o"
break
fi
done
done
if test -z "$asm_file_list"; then
enable_assembler=no
AC_MSG_WARN([No assembler files found.])
fi
fi
fi
AC_SUBST([OPT_ASM_SOURCES])
AH_VERBATIM([HAVE_NATIVE],
[/* Define to 1 each of the following for which a native (ie. CPU specific)
implementation of the corresponding routine exists. */
#undef HAVE_NATIVE_ecc_192_modp
#undef HAVE_NATIVE_ecc_192_redc
#undef HAVE_NATIVE_ecc_224_modp
#undef HAVE_NATIVE_ecc_224_redc
#undef HAVE_NATIVE_ecc_256_modp
#undef HAVE_NATIVE_ecc_256_redc
#undef HAVE_NATIVE_ecc_384_modp
#undef HAVE_NATIVE_ecc_384_redc
#undef HAVE_NATIVE_ecc_521_modp
#undef HAVE_NATIVE_ecc_521_redc])
# Besides getting correct dependencies, the explicit rules also tell
# make that the .s files "ought to exist", so they are preferred over
# .c files.
AC_CONFIG_COMMANDS([asm.d],
[ for f in $asm_file_list
do
case $f in
*.asm)
echo "`basename $f .asm`.s : $f "'$(srcdir)/asm.m4 machine.m4 config.m4'
;;
esac
done > asm.d
],
[ asm_file_list="$asm_file_list" ]
)
LSH_CCPIC
SHLIBCFLAGS="$CCPIC"
IF_DLL='#'
LIBNETTLE_FILE_SRC='$(LIBNETTLE_FORLINK)'
LIBHOGWEED_FILE_SRC='$(LIBHOGWEED_FORLINK)'
EMULATOR=''
W64_ABI=no
case "$host_os" in
mingw32*|cygwin*)
# The actual DLLs, e.g. libnettle-$major-$minor.dll, are normally
# installed into the bin dir (or more exactly $libdir/../bin, for
# automake), while libnettle.dll.a, which is a stub file for
# linking to the DLL, is installed into the lib dir.
case "$host_os" in
mingw32*)
LIBNETTLE_FORLINK='libnettle-$(LIBNETTLE_MAJOR)-$(LIBNETTLE_MINOR).dll'
LIBHOGWEED_FORLINK='libhogweed-$(LIBHOGWEED_MAJOR)-$(LIBHOGWEED_MINOR).dll'
;;
cygwin*)
LIBNETTLE_FORLINK='cygnettle-$(LIBNETTLE_MAJOR)-$(LIBNETTLE_MINOR).dll'
LIBHOGWEED_FORLINK='cyghogweed-$(LIBHOGWEED_MAJOR)-$(LIBHOGWEED_MINOR).dll'
;;
esac
if test "x$cross_compiling" = xyes ; then
case "$ABI" in
64)
EMULATOR=wine64
;;
*)
EMULATOR=wine
;;
esac
fi
if test "x$ABI" = x64 ; then
W64_ABI=yes
fi
LIBNETTLE_SONAME=''
LIBNETTLE_FILE='libnettle.dll.a'
LIBNETTLE_FILE_SRC='$(LIBNETTLE_FILE)'
LIBNETTLE_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -shared -Wl,--out-implib=$(LIBNETTLE_FILE) -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive'
LIBNETTLE_LIBS='-Wl,--no-whole-archive $(LIBS)'
LIBHOGWEED_SONAME=''
LIBHOGWEED_FILE='libhogweed.dll.a'
LIBHOGWEED_FILE_SRC='$(LIBHOGWEED_FILE)'
LIBHOGWEED_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -shared -Wl,--out-implib=$(LIBHOGWEED_FILE) -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive'
LIBHOGWEED_LIBS='-Wl,--no-whole-archive $(LIBS) libnettle.dll.a'
IF_DLL=''
;;
darwin*)
LIBNETTLE_FORLINK=libnettle.dylib
LIBNETTLE_SONAME='libnettle.$(LIBNETTLE_MAJOR).dylib'
LIBNETTLE_FILE='libnettle.$(LIBNETTLE_MAJOR).$(LIBNETTLE_MINOR).dylib'
LIBNETTLE_LINK='$(CC) $(CFLAGS) -dynamiclib $(LDFLAGS) -install_name ${libdir}/$(LIBNETTLE_SONAME) -compatibility_version $(LIBNETTLE_MAJOR) -current_version $(LIBNETTLE_MAJOR).$(LIBNETTLE_MINOR)'
LIBNETTLE_LIBS=''
LIBHOGWEED_FORLINK=libhogweed.dylib
LIBHOGWEED_SONAME='libhogweed.$(LIBHOGWEED_MAJOR).dylib'
LIBHOGWEED_FILE='libhogweed.$(LIBHOGWEED_MAJOR).$(LIBHOGWEED_MINOR).dylib'
LIBHOGWEED_LINK='$(CC) $(CFLAGS) -dynamiclib -L. $(LDFLAGS) -install_name ${libdir}/$(LIBHOGWEED_SONAME) -compatibility_version $(LIBHOGWEED_MAJOR) -current_version $(LIBHOGWEED_MAJOR).$(LIBHOGWEED_MINOR)'
LIBHOGWEED_LIBS='-lnettle -lgmp'
;;
solaris*)
# Sun's ld uses -h to set the soname, and this option is passed
# through by both Sun's compiler and gcc. Might not work with GNU
# ld, but it's unusual to use GNU ld on Solaris.
LIBNETTLE_FORLINK=libnettle.so
LIBNETTLE_SONAME='$(LIBNETTLE_FORLINK).$(LIBNETTLE_MAJOR)'
LIBNETTLE_FILE='$(LIBNETTLE_SONAME).$(LIBNETTLE_MINOR)'
LIBNETTLE_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -G -h $(LIBNETTLE_SONAME)'
LIBNETTLE_LIBS=''
LIBHOGWEED_FORLINK=libhogweed.so
LIBHOGWEED_SONAME='$(LIBHOGWEED_FORLINK).$(LIBHOGWEED_MAJOR)'
LIBHOGWEED_FILE='$(LIBHOGWEED_SONAME).$(LIBHOGWEED_MINOR)'
LIBHOGWEED_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -L. -G -h $(LIBHOGWEED_SONAME)'
LIBHOGWEED_LIBS='-lnettle -lgmp'
;;
*)
LIBNETTLE_FORLINK=libnettle.so
LIBNETTLE_SONAME='$(LIBNETTLE_FORLINK).$(LIBNETTLE_MAJOR)'
LIBNETTLE_FILE='$(LIBNETTLE_SONAME).$(LIBNETTLE_MINOR)'
LIBNETTLE_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -shared -Wl,-soname=$(LIBNETTLE_SONAME)'
LIBNETTLE_LIBS=''
LIBHOGWEED_FORLINK=libhogweed.so
LIBHOGWEED_SONAME='$(LIBHOGWEED_FORLINK).$(LIBHOGWEED_MAJOR)'
LIBHOGWEED_FILE='$(LIBHOGWEED_SONAME).$(LIBHOGWEED_MINOR)'
LIBHOGWEED_LINK='$(CC) $(CFLAGS) $(LDFLAGS) -L. -shared -Wl,-soname=$(LIBHOGWEED_SONAME)'
# Requested by debian, to make linking with only -lhogweed work
# (does not work in general, e.g., with static linking all of
# -lhogweed -lgmp -lnettle are still required). Also makes dlopen
# of libhogweed.so work, without having to use RTLD_GLOBAL.
# Depends on -L. above, to locate nettle.so.
LIBHOGWEED_LIBS='-lnettle -lgmp'
;;
esac
if test "x$enable_pic" = xyes; then
CCPIC_MAYBE="$CCPIC"
else
CCPIC_MAYBE=''
fi
AC_SUBST([CCPIC_MAYBE])
ASM_SYMBOL_PREFIX=''
ASM_ELF_STYLE='no'
# GNU as default is to use @
ASM_TYPE_FUNCTION='@function'
ASM_TYPE_PROGBITS='@progbits'
ASM_MARK_NOEXEC_STACK=''
ASM_ALIGN_LOG=''
if test x$enable_assembler = xyes ; then
AC_CACHE_CHECK([if globals are prefixed by underscore],
nettle_cv_asm_underscore,
[ # Default is no underscore
nettle_cv_asm_underscore=no
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([int a_global_symbol;])],
[ $NM conftest.$OBJEXT >conftest.out
if grep _a_global_symbol conftest.out >/dev/null ; then
nettle_cv_asm_underscore=yes
elif grep a_global_symbol conftest.out >/dev/null ; then
nettle_cv_asm_underscore=no
else
AC_MSG_WARN([nm doesn't list a_global_symbol at all])
fi],
[AC_MSG_WARN([test program with a single global could not be compiled!?])])])
if test x$nettle_cv_asm_underscore = xyes ; then
ASM_SYMBOL_PREFIX='_'
fi
AC_CACHE_CHECK([for ELF-style .type,%function pseudo-ops],
[nettle_cv_asm_type_percent_function],
[GMP_TRY_ASSEMBLE([
.text
.globl foo
.type foo,%function
foo:
.Lend:
.size foo, .Lend - foo
],
[nettle_cv_asm_type_percent_function=yes],
[nettle_cv_asm_type_percent_function=no])])
dnl Needs double quote for the # character
AC_CACHE_CHECK([[for ELF-style .type,#function pseudo-ops]],
[nettle_cv_asm_type_hash_function],
[GMP_TRY_ASSEMBLE([
.text
.globl foo
.type foo,#function
foo:
.Lend:
.size foo, .Lend - foo
],
[nettle_cv_asm_type_hash_function=yes],
[nettle_cv_asm_type_hash_function=no])])
if test x$nettle_cv_asm_type_percent_function = xyes ; then
ASM_ELF_STYLE='yes'
ASM_TYPE_FUNCTION='%function'
ASM_TYPE_PROGBITS='%progbits'
else
if test x$nettle_cv_asm_type_hash_function = xyes ; then
ASM_ELF_STYLE='yes'
ASM_TYPE_FUNCTION='#function'
ASM_TYPE_PROGBITS='#progbits'
fi
fi
AC_CACHE_CHECK([if we should use a .note.GNU-stack section],
nettle_cv_asm_gnu_stack,
[ # Default
nettle_cv_asm_gnu_stack=no
cat >conftest.c <<EOF
int foo() { return 0; }
EOF
nettle_compile="$CC $CFLAGS $CPPFLAGS -c conftest.c >conftest.out 2>&1"
if AC_TRY_EVAL(nettle_compile); then
cat conftest.out >&AC_FD_CC
$OBJDUMP -x conftest.o | grep '\.note\.GNU-stack' > /dev/null \
&& nettle_cv_asm_gnu_stack=yes
else
cat conftest.out >&AC_FD_CC
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.s >&AC_FD_CC
fi
rm -f conftest.*])
if test x$nettle_cv_asm_gnu_stack = xyes ; then
ASM_MARK_NOEXEC_STACK='.section .note.GNU-stack,"",TYPE_PROGBITS'
fi
AC_CACHE_CHECK([if .align assembly directive is logarithmic],
[nettle_cv_asm_align_log],
[GMP_TRY_ASSEMBLE([
.align 3
],
[nettle_cv_asm_align_log=yes],
[nettle_cv_asm_align_log=no])])
ASM_ALIGN_LOG="$nettle_cv_asm_align_log"
fi
AC_SUBST(ASM_SYMBOL_PREFIX)
AC_SUBST(ASM_ELF_STYLE)
AC_SUBST(ASM_TYPE_FUNCTION)
AC_SUBST(ASM_TYPE_PROGBITS)
AC_SUBST(ASM_MARK_NOEXEC_STACK)
AC_SUBST(ASM_ALIGN_LOG)
AC_SUBST(W64_ABI)
AC_SUBST(EMULATOR)
AC_SUBST(SHLIBCFLAGS)
AC_SUBST(LIBNETTLE_MAJOR)
AC_SUBST(LIBNETTLE_MINOR)
AC_SUBST(LIBNETTLE_FORLINK)
AC_SUBST(LIBNETTLE_SONAME)
AC_SUBST(LIBNETTLE_FILE)
AC_SUBST(LIBNETTLE_FILE_SRC)
AC_SUBST(LIBNETTLE_LINK)
AC_SUBST(LIBNETTLE_LIBS)
AC_SUBST(LIBHOGWEED_MAJOR)
AC_SUBST(LIBHOGWEED_MINOR)
AC_SUBST(LIBHOGWEED_FORLINK)
AC_SUBST(LIBHOGWEED_SONAME)
AC_SUBST(LIBHOGWEED_FILE)
AC_SUBST(LIBHOGWEED_FILE_SRC)
AC_SUBST(LIBHOGWEED_LINK)
AC_SUBST(LIBHOGWEED_LIBS)
AC_PATH_PROG(M4, m4, m4)
if test "x$enable_gcov" = "xyes"; then
CFLAGS="$CFLAGS -ftest-coverage -fprofile-arcs"
fi
# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_UID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_CHECK_SIZEOF(long)
AC_CHECK_ALIGNOF(uint64_t)
ALIGNOF_UINT64_T="$ac_cv_alignof_uint64_t"
AC_SUBST(ALIGNOF_UINT64_T)
AC_CHECK_HEADERS([openssl/blowfish.h openssl/des.h openssl/cast.h openssl/aes.h],,
[enable_openssl=no
break])
LSH_FUNC_ALLOCA
LSH_FUNC_STRERROR
# Needed by the supplied memcmp.c
AC_C_BIGENDIAN
AC_REPLACE_FUNCS(memxor)
LSH_GCC_ATTRIBUTES
# According to Simon Josefsson, looking for uint32_t and friends in
# sys/types.h is needed on some systems, in particular cygwin.
AX_CREATE_STDINT_H([nettle-stdint.h], [sys/types.h])
# Check for file locking. We (AC_PROG_CC?) have already checked for
# sys/types.h and unistd.h.
AC_CACHE_CHECK([for fcntl file locking],
nettle_cv_fcntl_locking,
[AC_TRY_COMPILE([
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <fcntl.h>
],[
int op = F_SETLKW;
struct flock fl;
],
nettle_cv_fcntl_locking=yes,
nettle_cv_fcntl_locking=no)])
AH_TEMPLATE([HAVE_FCNTL_LOCKING], [Define if fcntl file locking is available])
if test "x$nettle_cv_fcntl_locking" = "xyes" ; then
AC_DEFINE(HAVE_FCNTL_LOCKING)
fi
# Checks for libraries
AC_CHECK_LIB(gmp, __gmpz_getlimbn,,
[AC_MSG_WARN(
[GNU MP not found, or not 3.1 or up, see http://gmplib.org/.
Support for public key algorithms will be unavailable.])]
enable_public_key=no)
# Add -R flags needed to run programs linked with gmp
LSH_RPATH_FIX
# Check for gmp limb size
nettle_cv_gmp_numb_bits=0
if test "$enable_public_key" = yes; then
AC_MSG_CHECKING([for GMP limb size])
AC_COMPUTE_INT(nettle_cv_gmp_numb_bits, [GMP_NUMB_BITS],
[#include <gmp.h>],
[AC_MSG_FAILURE([cannot find value of GMP_NUMB_BITS])])
AC_MSG_RESULT([$nettle_cv_gmp_numb_bits bits])
fi
GMP_NUMB_BITS="$nettle_cv_gmp_numb_bits"
AC_SUBST([GMP_NUMB_BITS])
AH_TEMPLATE([HAVE_MPZ_POWM_SEC], [Define if mpz_powm_sec is available (appeared in GMP-5)])
AC_CHECK_FUNC(__gmpz_powm_sec, [AC_DEFINE(HAVE_MPZ_POWM_SEC)])
AH_TEMPLATE([WITH_HOGWEED], [Defined if public key features are enabled])
if test "x$enable_public_key" = xyes ; then
AC_DEFINE(WITH_HOGWEED)
IF_HOGWEED=''
else
IF_HOGWEED='#'
fi
if test "x$enable_static" = xyes ; then
IF_STATIC=''
else
IF_STATIC='#'
fi
if test "x$enable_shared" = xyes ; then
IF_SHARED=''
else
IF_SHARED='#'
fi
# Documentation tools
if test "x$enable_documentation" != "xno"; then
AC_PATH_PROG(MAKEINFO, makeinfo, not-found)
if test "x$MAKEINFO" != "xnot-found"; then
enable_documentation=yes
AC_SUBST(MAKEINFO)
else
if test "x$enable_documentation" == "xauto" ; then
enable_documentation=no
else
AC_MSG_ERROR([Cannot find 'makeinfo', required for documentation.])
fi
fi
fi
if test "x$enable_documentation" = "xyes" ; then
IF_DOCUMENTATION=''
else
IF_DOCUMENTATION='#'
fi
AC_SUBST(IF_HOGWEED)
AC_SUBST(IF_STATIC)
AC_SUBST(IF_SHARED)
AC_SUBST(IF_DOCUMENTATION)
AC_SUBST(IF_DLL)
OPENSSL_LIBFLAGS=''
# Check for openssl's libcrypto (used only for benchmarking)
if test x$enable_openssl = xyes ; then
AC_CHECK_LIB(crypto, BF_ecb_encrypt,
[OPENSSL_LIBFLAGS='-lcrypto'],
[enable_openssl=no])
fi
AH_TEMPLATE([WITH_OPENSSL],
[Define if you have openssl's libcrypto (used for benchmarking)]) dnl'
if test x$enable_openssl = xyes ; then
AC_DEFINE(WITH_OPENSSL)
fi
AC_SUBST(OPENSSL_LIBFLAGS)
AH_BOTTOM(
[#if defined(__x86_64__) || defined(__arch64__)
# define HAVE_NATIVE_64_BIT 1
#else
/* Needs include of <limits.h> before use. */
# define HAVE_NATIVE_64_BIT (SIZEOF_LONG * CHAR_BIT >= 64)
#endif
])
# clock_gettime is in librt on *-*-osf5.1 and on glibc, so add -lrt to
# BENCH_LIBS if needed. On linux (tested on x86_32, 2.6.26),
# clock_getres reports ns accuracy, while in a quick test on osf
# clock_getres said only 1 millisecond.
old_LIBS="$LIBS"
AC_SEARCH_LIBS(clock_gettime, rt, [
AC_DEFINE([HAVE_CLOCK_GETTIME],1,[Define if clock_gettime is available])])
BENCH_LIBS="$LIBS"
LIBS="$old_LIBS"
AC_SUBST(BENCH_LIBS)
# Set these flags *last*, or else the test programs won't compile
if test x$GCC = xyes ; then
# Using -ggdb3 makes (some versions of) Redhat's gcc-2.96 dump core
if $CC --version | grep '^2\.96$' 1>/dev/null 2>&1; then
true
else
CFLAGS="$CFLAGS -ggdb3"
fi
# FIXME: It would be better to actually test if this option works and/or is needed.
# Or perhaps use -funsigned-char.
if $CC --version | grep 'gcc.* 4\.' 1>/dev/null 2>&1; then
CFLAGS="$CFLAGS -Wno-pointer-sign"
fi
CFLAGS="$CFLAGS -Wall -W \
-Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes \
-Wpointer-arith -Wbad-function-cast -Wnested-externs"
# Don't enable -Wcast-align as it results in tons of warnings in the
# DES code. And when using stdio.
# Don't enable -Waggregate-return, as that causes warnings for glibc
# inttypes.h.
fi
AC_CONFIG_FILES([config.make config.m4 Makefile])
AC_CONFIG_FILES([tools/Makefile testsuite/Makefile examples/Makefile])
AC_CONFIG_FILES([nettle.pc hogweed.pc])
AC_OUTPUT
AC_MSG_NOTICE([summary of build options:
Version: ${PACKAGE_STRING}
Host type: ${host}
ABI: ${ABI}
Assembly files: ${asm_path:-none}
Install prefix: ${prefix}
Library directory: ${libdir}
Compiler: ${CC}
Static libraries: ${enable_static}
Shared libraries: ${enable_shared}
Public key crypto: ${enable_public_key}
Documentation: ${enable_documentation}
])
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