# This works around the fact that libtool configuration may change LD
# for this particular configuration, but some shells, instead of
# keeping the changes in LD private, export them just because LD is
# exported. We don't use libtool yet, but some day we might, so...
ORIGINAL_LD_FOR_MULTILIBS=$LD
dnl We use these options to decide which functions to include.
AC_ARG_WITH(target-subdir,
[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
AC_ARG_WITH(build-subdir,
[ --with-build-subdir=SUBDIR Configuring in a subdirectory for build])
AC_ARG_WITH(cross-host,
[ --with-cross-host=HOST Configuring with a cross compiler])
AC_ARG_WITH(newlib,
[ --with-newlib Configuring with newlib])
if test "${srcdir}" = "."; then
if test -n "${with_build_subdir}"; then
libiberty_topdir="${srcdir}/../.."
with_target_subdir=
elif test -z "${with_target_subdir}"; then
libiberty_topdir="${srcdir}/.."
else
if test "${with_target_subdir}" != "."; then
libiberty_topdir="${srcdir}/${with_multisrctop}../.."
else
libiberty_topdir="${srcdir}/${with_multisrctop}.."
fi
fi
else
libiberty_topdir="${srcdir}/.."
fi
AC_SUBST(libiberty_topdir)
AC_CONFIG_AUX_DIR($libiberty_topdir)
dnl Very limited version of automake's enable-maintainer-mode
AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
dnl maintainer-mode is disabled by default
AC_ARG_ENABLE(maintainer-mode,
[ --enable-maintainer-mode
enable make rules and dependencies not useful
(and sometimes confusing) to the casual installer],
maintainer_mode=$enableval,
maintainer_mode=no)
AC_MSG_RESULT($maintainer_mode)
if test "$maintainer_mode" = "yes"; then
MAINT=''
NOTMAINT='#'
else
MAINT='#'
NOTMAINT=''
fi
AC_SUBST(MAINT)dnl
AC_SUBST(NOTMAINT)dnl
if test -z "$ETAGS"; then
ETAGS=etags
fi
AC_SUBST([ETAGS])
# Do we have a single-tree copy of texinfo? Even if we do, we can't
# rely on it - libiberty is built before texinfo.
AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
if test "x$MAKEINFO" = "x"; then
MAKEINFO="@echo makeinfo missing; true"
BUILD_INFO=
else
BUILD_INFO=info
case "$MAKEINFO" in
*/missing\ makeinfo*)
BUILD_INFO=
AC_MSG_WARN([
*** Makeinfo is missing. Info documentation will not be built.])
;;
*)
case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
x*\ [[1-3]].* )
MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
BUILD_INFO=
AC_MSG_WARN([
*** Makeinfo is too old. Info documentation will not be built.])
;;
esac
;;
esac
fi
AC_SUBST(MAKEINFO)
AC_SUBST(BUILD_INFO)
AC_CHECK_PROG(PERL, perl, perl, )
if test x"$PERL" = x""; then
HAVE_PERL='#'
else
HAVE_PERL=''
fi
AC_SUBST(HAVE_PERL)
AC_CANONICAL_HOST
dnl When we start using automake:
dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
dnl These must be called before AM_PROG_LIBTOOL, because it may want
dnl to call AC_CHECK_PROG.
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
GCC_PLUGIN_OPTION(PLUGIN_OPTION)
if test -n "$PLUGIN_OPTION"; then
if $AR --help 2>&1 | grep -q "\--plugin"; then
AR_PLUGIN_OPTION="$PLUGIN_OPTION"
AC_SUBST(AR_PLUGIN_OPTION)
fi
if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
AC_SUBST(RANLIB_PLUGIN_OPTION)
fi
fi
dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB.
# Add --enable-multilib to configure.
# Default to --enable-multilib
AC_ARG_ENABLE(multilib,
[ --enable-multilib build many library versions (default)],
[case "$enableval" in
yes) multilib=yes ;;
no) multilib=no ;;
*) AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
esac],
[multilib=yes])
# Even if the default multilib is not a cross compilation,
# it may be that some of the other multilibs are.
if test $cross_compiling = no && test $multilib = yes \
&& test "x${with_multisubdir}" != x ; then
cross_compiling=maybe
fi
# We may wish to install the target headers somewhere.
AC_MSG_CHECKING([whether to install libiberty headers and static library])
dnl install-libiberty is disabled by default
AC_ARG_ENABLE(install-libiberty,
[ --enable-install-libiberty Install headers and library for end users],
enable_install_libiberty=$enableval,
enable_install_libiberty=no)dnl
# Option parsed, now set things appropriately.
case x"$enable_install_libiberty" in
xyes|x)
target_header_dir=libiberty
;;
xno)
target_header_dir=
;;
*)
# This could be sanity-checked in various ways...
target_header_dir="${enable_install_libiberty}"
;;
esac
AC_MSG_RESULT($enable_install_libiberty)
AC_MSG_NOTICE([target_header_dir = $target_header_dir])
AC_PROG_CC_C_O
# autoconf is lame and doesn't give us any substitution variable for this.
if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
NO_MINUS_C_MINUS_O=yes
else
OUTPUT_OPTION='-o $@'
fi
AC_SUBST(NO_MINUS_C_MINUS_O)
AC_SUBST(OUTPUT_OPTION)
AC_C_CONST
AC_C_INLINE
AC_C_BIGENDIAN
dnl When we start using libtool:
dnl Default to a non shared library. This may be overridden by the
dnl configure option --enable-shared.
dnl AM_DISABLE_SHARED
dnl When we start using libtool:
dnl AM_PROG_LIBTOOL
dnl When we start using automake:
dnl AM_CONFIG_HEADER(config.h:config.in)
AC_CONFIG_HEADER(config.h:config.in)
dnl When we start using automake:
dnl AM_MAINTAINER_MODE
dnl AC_EXEEXT
dnl When we start using automake:
dnl AM_PROG_INSTALL
AC_PROG_INSTALL
# Don't build the shared library for build.
if [[ -n "${with_build_subdir}" ]]; then
enable_shared=no
fi
if [[ -n "${frag}" ]]; then
frag=${libiberty_topdir}/libiberty/config/$frag
fi
GCC_PICFLAG
# If they didn't specify --enable-shared, don't generate shared libs.
case "${enable_shared}" in
yes) shared=yes ;;
no) shared=no ;;
"") shared=no ;;
*) shared=yes ;;
esac
# ...unless --enable-host-{shared,pie} was passed from top-level config:
if [[ "${enable_host_shared}" = "yes" ]] || [[ "${enable_host_pie}" = "yes" ]]; then
shared=yes
fi
if [[ "${shared}" != "yes" ]]; then
PICFLAG=
fi
AC_SUBST(PICFLAG)
NOASANFLAG=
case " ${CFLAGS} " in
*\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
*\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;;
esac
AC_SUBST(NOASANFLAG)
echo "# Warning: this fragment is automatically generated" > temp-frag
if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
echo "Appending ${frag} to xhost-mkfrag"
echo "# Following fragment copied from ${frag}" >> temp-frag
cat ${frag} >> temp-frag
fi
# record if we want to build shared libs.
if [[ "${shared}" = "yes" ]]; then
echo enable_shared = yes >> temp-frag
else
echo enable_shared = no >> temp-frag
fi
# It's OK to check for header files. Although the compiler may not be
# able to link anything, it had better be able to at least compile
# something.
AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h stdio_ext.h process.h sys/prctl.h spawn.h)
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
libiberty_AC_DECLARE_ERRNO
# Determine sizes of some types.
AC_CHECK_SIZEOF([int])
AC_CHECK_SIZEOF([long])
AC_CHECK_SIZEOF([size_t])
# Check for presense of long long
AC_CHECK_TYPE([long long],
[AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
[])
# Look for a 64-bit type.
AC_MSG_CHECKING([for a 64-bit type])
AC_CACHE_VAL(liberty_cv_uint64,
[AC_TRY_COMPILE(
[#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif],
[extern uint64_t foo;],
liberty_cv_uint64=uint64_t,
[AC_TRY_COMPILE(
[#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif],
[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
liberty_cv_uint64="unsigned long",
[AC_TRY_COMPILE(
[#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif],
[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
AC_MSG_RESULT($liberty_cv_uint64)
if test "$liberty_cv_uint64" != none; then
AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
[Define to an unsigned 64-bit type available in the compiler.])
fi
# Given the above check, we always have uintptr_t or a fallback
# definition. So define HAVE_UINTPTR_T in case any imported code
# relies on it.
AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
AC_TYPE_PID_T
# This is the list of functions which libiberty will provide if they
# are not available on the host.
# Darwin has sbrk, but it is deprecated and that produces build-time warnings
# so do not check for it.
case "${host}" in
*-*-darwin*) ;;
*) checkfuncs="$checkfuncs sbrk"
esac
# These are neither executed nor required, but they help keep
# autoheader happy without adding a bunch of text to acconfig.h.
if test "x" = "y"; then
AC_CHECK_FUNCS(asprintf atexit \
basename bcmp bcopy bsearch bzero \
calloc canonicalize_file_name clock \
dup3 \
ffs __fsetlocking \
getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
index insque \
memchr memcmp memcpy memmem memmove memset mkstemps \
on_exit \
pipe2 posix_spawn posix_spawnp psignal \
pstat_getdynamic pstat_getstatic putenv \
random realpath rename rindex \
sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
stpcpy stpncpy strcasecmp strchr strdup \
strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
table times tmpnam \
vasprintf vfprintf vprintf vsprintf \
wait3 wait4 waitpid)
AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen])
AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
fi
# For each of these functions, if the host does not provide the
# function we want to put FN.o in LIBOBJS, and if the host does
# provide the function, we want to define HAVE_FN in config.h.
setobjs=
CHECK=
if test -n "${with_target_subdir}"; then
# We are being configured as a target library. AC_REPLACE_FUNCS
# may not work correctly, because the compiler may not be able to
# link executables. Note that we may still be being configured
# native.
# If we are being configured for newlib, we know which functions
# newlib provide and which ones we will be expected to provide.
if test "x${with_newlib}" = "xyes"; then
AC_LIBOBJ([asprintf])
AC_LIBOBJ([basename])
AC_LIBOBJ([insque])
AC_LIBOBJ([random])
AC_LIBOBJ([strdup])
AC_LIBOBJ([vasprintf])
for f in $funcs; do
case "$f" in
asprintf | basename | insque | random | strdup | vasprintf)
;;
*)
n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
AC_DEFINE_UNQUOTED($n)
;;
esac
done
# newlib doesnt provide any of the variables in $vars, so we
# dont have to check them here.
# Of the functions in $checkfuncs, newlib only has strerror.
AC_DEFINE(HAVE_STRERROR)
setobjs=yes
fi
# If we are being configured for Mingw, we know which functions
# Mingw provides and which ones we will be expected to provide.
for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
getcwd getpagesize getrusage gettimeofday \
index insque memchr memcmp memcpy memmove memset psignal \
putenv random rename rindex sbrk setenv stpcpy strcasecmp \
strchr strdup strerror strncasecmp strrchr strstr strtod \
strtol strtoul sysconf times tmpnam vfprintf vprintf \
vsprintf waitpid
do
n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
AC_DEFINE_UNQUOTED($n)
done
setobjs=yes
;;
esac
else
# Not a target library, so we set things up to run the test suite.
CHECK=really-check
fi
AC_SUBST(CHECK)
AC_SUBST(target_header_dir)
case "${host}" in
*-*-cygwin* | *-*-mingw*)
AC_DEFINE(HAVE_SYS_ERRLIST)
AC_DEFINE(HAVE_SYS_NERR)
;;
esac
if test -z "${setobjs}"; then
case "${host}" in
*-*-vxworks*)
# Handle VxWorks configuration specially, since on VxWorks the
# libraries are actually on the target board, not in the file
# system.
AC_LIBOBJ([basename])
AC_LIBOBJ([getpagesize])
AC_LIBOBJ([insque])
AC_LIBOBJ([random])
AC_LIBOBJ([strcasecmp])
AC_LIBOBJ([strncasecmp])
AC_LIBOBJ([strdup])
AC_LIBOBJ([vfork])
AC_LIBOBJ([waitpid])
AC_LIBOBJ([vasprintf])
for f in $funcs; do
case "$f" in
basename | getpagesize | insque | random | strcasecmp)
;;
strncasecmp | strdup | vfork | waitpid | vasprintf)
;;
*)
n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
AC_DEFINE_UNQUOTED($n)
;;
esac
done
# VxWorks doesn't provide any of the variables in $vars, so we
# don't have to check them here.
# Of the functions in $checkfuncs, VxWorks only has strerror.
AC_DEFINE(HAVE_STRERROR)
setobjs=yes
;;
esac
fi
if test -z "${setobjs}"; then
case "${host}" in
*-*-android*)
# On android, getpagesize is defined in unistd.h as a static inline
# function, which AC_CHECK_FUNCS does not handle properly.
ac_cv_func_getpagesize=yes
;;
hppa*-*-hpux*)
# Replace system snprintf and vsnprintf with libiberty implementations.
AC_LIBOBJ([snprintf])
AC_LIBOBJ([vsnprintf])
;;
*-*-mingw32*)
# Under mingw32, sys_nerr and sys_errlist exist, but they are
# macros, so the test below won't find them.
libiberty_cv_var_sys_nerr=yes
libiberty_cv_var_sys_errlist=yes
;;
*-*-msdosdjgpp*)
# vfork and fork are stubs.
ac_cv_func_vfork_works=no
;;
*-*-uwin*)
# Under some versions of uwin, vfork is notoriously buggy and the test
# can hang configure; on other versions, vfork exists just as a stub.
# FIXME: This should be removed once vfork in uwin's runtime is fixed.
ac_cv_func_vfork_works=no
# Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
# macros (actually, these are imported from a DLL, but the end effect
# is the same), so the test below won't find them.
libiberty_cv_var_sys_nerr=yes
libiberty_cv_var_sys_errlist=yes
;;
*-*-*vms*)
# Under VMS, vfork works very different than on Unix. The standard test
# won't work, and it isn't easily adaptable. It makes more sense to
# just force it.
ac_cv_func_vfork_works=yes
;;
esac
# We haven't set the list of objects yet. Use the standard autoconf
# tests. This will only work if the compiler works.
AC_ISC_POSIX
AC_REPLACE_FUNCS($funcs)
libiberty_AC_FUNC_C_ALLOCA
AC_FUNC_FORK
if test $ac_cv_func_vfork_works = no; then
AC_LIBOBJ([vfork])
fi
# We only need _doprnt if we might use it to implement v*printf.
if test $ac_cv_func_vprintf != yes \
|| test $ac_cv_func_vfprintf != yes \
|| test $ac_cv_func_vsprintf != yes; then
AC_REPLACE_FUNCS(_doprnt)
else
AC_CHECK_FUNCS(_doprnt)
fi
for v in $vars; do
AC_MSG_CHECKING([for $v])
AC_CACHE_VAL(libiberty_cv_var_$v,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern int $v [];]],[[if ($v [0]) return 1;]])],
[eval "libiberty_cv_var_$v=yes"],
[eval "libiberty_cv_var_$v=no"])])
if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
AC_MSG_RESULT(yes)
n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
AC_DEFINE_UNQUOTED($n)
else
AC_MSG_RESULT(no)
fi
done
# special check for _system_configuration because AIX <4.3.2 do not
# contain the `physmem' member.
AC_MSG_CHECKING([for external symbol _system_configuration])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
[[double x = _system_configuration.physmem;]])],
[AC_MSG_RESULT([yes])
AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
[Define if you have the _system_configuration variable.])],
[AC_MSG_RESULT([no])])
AC_CHECK_FUNCS($checkfuncs)
AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc])
case "${host}" in
*-*-darwin*) ;; # Darwin's sbrk implementation is deprecated.
*) AC_CHECK_DECLS([sbrk]);;
esac
AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
AC_CHECK_DECLS([strverscmp])
AC_CHECK_DECLS([strnlen])
libiberty_NEED_DECLARATION(canonicalize_file_name)
fi
# Figure out which version of pexecute to use.
case "${host}" in
*-*-mingw* | *-*-winnt*) pexecute=pex-win32 ;;
*-*-msdosdjgpp*) pexecute=pex-djgpp ;;
*-*-msdos*) pexecute=pex-msdos ;;
*) pexecute=pex-unix ;;
esac
AC_SUBST(pexecute)
int bar (void)
{
unsigned int eax, ebx, ecx, edx;
(void) __get_cpuid;
(void) __get_cpuid_count;
if (__get_cpuid_count (7, 0, &eax, &ebx, &ecx, &edx)
&& (ebx & bit_SHA) != 0
&& __get_cpuid (1, &eax, &ebx, &ecx, &edx)
&& (ecx & bit_SSE4_1) != 0)
return 1;
return 0;
}
]], [[bar ();]])],
[AC_MSG_RESULT([x86 SHA1])
AC_DEFINE(HAVE_X86_SHA1_HW_SUPPORT, 1,
[Define if you have x86 SHA1 HW acceleration support.])],
[AC_MSG_RESULT([no])])
libiberty_AC_FUNC_STRNCMP
# Install a library built with a cross compiler in $(tooldir) rather
# than $(libdir).
if test -z "${with_cross_host}"; then
INSTALL_DEST=libdir
else
INSTALL_DEST=tooldir
fi
AC_SUBST(INSTALL_DEST)
m4_pattern_allow(LIBOBJS)
L=""
for l in x $LIBOBJS; do
case $l in
x) ;;
*) L="$L ./$l" ;;
esac
done
LIBOBJS="$L"
dnl Required by html and install-html
AC_SUBST(datarootdir)
AC_SUBST(docdir)
AC_SUBST(htmldir)
# We need multilib support, but only if configuring for the target.
AC_CONFIG_FILES([Makefile])
AC_CONFIG_COMMANDS([default],
[[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
if test -n "$CONFIG_FILES"; then
if test -n "${with_target_subdir}"; then
# FIXME: We shouldn't need to set ac_file
ac_file=Makefile
LD="${ORIGINAL_LD_FOR_MULTILIBS}"
. ${libiberty_topdir}/config-ml.in
fi
fi]],
[[srcdir=${srcdir}
host=${host}
target=${target}
with_target_subdir=${with_target_subdir}
with_multisubdir=${with_multisubdir}
ac_configure_args="--enable-multilib ${ac_configure_args}"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
libiberty_topdir=${libiberty_topdir}
]])
AC_OUTPUT
