binutils-gdb/libiberty/configure.ac

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dnl Process this file with autoconf to produce a configure script
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AC_PREREQ(2.59)
AC_INIT
AC_CONFIG_SRCDIR([xmalloc.c])
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# 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
# 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_NO_EXECUTABLES
AC_PROG_CC
AC_PROG_CPP_WERROR
if test x$GCC = xyes; then
ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic'
fi
AC_SUBST(ac_libiberty_warn_cflags)
AC_PROG_CC_C_O
# autoconf is lame and doesn't give us any substitution variable for this.
if eval "test \"`echo '$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_CROSS
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
. ${srcdir}/config.table
host_makefile_frag=${frag}
AC_SUBST_FILE(host_makefile_frag)
# 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)
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
libiberty_AC_DECLARE_ERRNO
AC_CHECK_TYPE(uintptr_t, unsigned long)
# 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.
funcs="asprintf"
funcs="$funcs atexit"
funcs="$funcs basename"
funcs="$funcs bcmp"
funcs="$funcs bcopy"
funcs="$funcs bsearch"
funcs="$funcs bzero"
funcs="$funcs calloc"
funcs="$funcs clock"
funcs="$funcs ffs"
funcs="$funcs getcwd"
funcs="$funcs getpagesize"
funcs="$funcs index"
funcs="$funcs insque"
funcs="$funcs memchr"
funcs="$funcs memcmp"
funcs="$funcs memcpy"
funcs="$funcs memmove"
funcs="$funcs mempcpy"
funcs="$funcs memset"
funcs="$funcs mkstemps"
funcs="$funcs putenv"
funcs="$funcs random"
funcs="$funcs rename"
funcs="$funcs rindex"
funcs="$funcs setenv"
funcs="$funcs snprintf"
funcs="$funcs sigsetmask"
funcs="$funcs stpcpy"
funcs="$funcs stpncpy"
funcs="$funcs strcasecmp"
funcs="$funcs strchr"
funcs="$funcs strdup"
funcs="$funcs strncasecmp"
funcs="$funcs strrchr"
funcs="$funcs strstr"
funcs="$funcs strtod"
funcs="$funcs strtol"
funcs="$funcs strtoul"
funcs="$funcs tmpnam"
funcs="$funcs vasprintf"
funcs="$funcs vfprintf"
funcs="$funcs vprintf"
funcs="$funcs vsnprintf"
funcs="$funcs vsprintf"
funcs="$funcs waitpid"
# Also in the old function.def file: alloca, vfork, getopt.
vars="sys_errlist sys_nerr sys_siglist"
checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
checkfuncs="$checkfuncs getsysinfo table sysctl"
# These are neither executed nor required, but they help keep
# autoheader happy without adding a bunch of text to acconfig.h.
if test "x" = "y"; then
AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
getcwd getpagesize index insque mkstemps memchr memcmp memcpy \
memmove mempcpy memset putenv random rename rindex sigsetmask \
strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strrchr strstr \
strtod strtol strtoul tmpnam vasprintf vfprintf vprintf \
vsprintf waitpid getrusage on_exit psignal strerror strsignal \
sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl \
realpath canonicalize_file_name)
AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
fi
# For each of these functions, if the host does not provide the
# function we want to put FN.o in LIBOBJS, and if the host does
# provide the function, we want to define HAVE_FN in config.h.
setobjs=
CHECK=
target_header_dir=
if test -n "${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 $checkfuncs, newlib only has strerror.
AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
setobjs=yes
fi
# We may wish to install the target headers somewhere.
AC_ARG_ENABLE(install-libiberty,
[ --enable-install-libiberty Install headers for end users],
enable_install_libiberty=$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
else
# Not a target library, so we set things up to run the test suite.
CHECK=check-cplus-dem
fi
AC_SUBST(CHECK)
AC_SUBST(target_header_dir)
case "${host}" in
*-*-cygwin* | *-*-mingw*)
AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
;;
esac
if test -z "${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 $checkfuncs, VxWorks only has strerror.
AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
setobjs=yes
;;
esac
fi
if test -z "${setobjs}"; then
case "${host}" in
*-*-cygwin*)
# The Cygwin library actually uses a couple of files from
# libiberty when it is built. If we are building a native
# Cygwin, and we run the tests, we will appear to have these
# files. However, when we go on to build winsup, we will wind up
# with a library which does not have the files, since they should
# have come from libiberty.
# We handle this by removing the functions the winsup library
# provides from our shell variables, so that they appear to be
# missing.
# DJ - only if we're *building* cygwin, not just building *with* cygwin
if test -n "${with_target_subdir}"
then
funcs="`echo $funcs | sed -e 's/random//'`"
AC_LIBOBJ([random])
vars="`echo $vars | sed -e 's/sys_siglist//'`"
checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
fi
;;
*-*-mingw32*)
# Under mingw32, sys_nerr and sys_errlist exist, but they are
# macros, so the test below won't find them.
libiberty_cv_var_sys_nerr=yes
libiberty_cv_var_sys_errlist=yes
;;
*-*-uwin*)
# Under some versions of uwin, vfork is notoriously buggy and the test
# can hang configure; on other versions, vfork exists just as a stub.
# FIXME: This should be removed once vfork in uwin's runtime is fixed.
ac_cv_func_vfork_works=no
# Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
# macros (actually, these are imported from a DLL, but the end effect
# is the same), so the test below won't find them.
libiberty_cv_var_sys_nerr=yes
libiberty_cv_var_sys_errlist=yes
;;
*-*-*vms*)
# Under VMS, vfork works very different than on Unix. The standard test
# won't work, and it isn't easily adaptable. It makes more sense to
# just force it.
ac_cv_func_vfork_works=yes
;;
esac
# We haven't set the list of objects yet. Use the standard autoconf
# tests. This will only work if the compiler works.
AC_ISC_POSIX
AC_REPLACE_FUNCS($funcs)
libiberty_AC_FUNC_C_ALLOCA
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AC_FUNC_FORK
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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,
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[AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
[eval "libiberty_cv_var_$v=yes"],
[eval "libiberty_cv_var_$v=no"])])
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if eval "test \"`echo '$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])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
[[double x = _system_configuration.physmem;]])],
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[AC_MSG_RESULT([yes])
AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
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[Define if you have the _system_configuration variable.])],
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[AC_MSG_RESULT([no])])
AC_CHECK_FUNCS($checkfuncs)
libiberty_NEED_DECLARATION(canonicalize_file_name)
fi
# Figure out which version of pexecute to use.
case "${host}" in
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*-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
*-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
*-*-msdos*) pexecute=./pex-msdos.o ;;
*-*-os2-emx*) pexecute=./pex-os2.o ;;
*) pexecute=./pex-unix.o ;;
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esac
AC_SUBST(pexecute)
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)
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m4_pattern_allow(LIBOBJS)
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L=""
for l in x $LIBOBJS; do
case $l in
x) ;;
*) L="$L ./$l" ;;
esac
done
LIBOBJS="$L"
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# We need multilib support, but only if configuring for the target.
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AC_CONFIG_FILES([Makefile testsuite/Makefile])
AC_CONFIG_COMMANDS([default],
[[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
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if test -n "$CONFIG_FILES"; then
if test -n "${with_build_subdir}" || test -n "${with_target_subdir}"; then
# FIXME: We shouldn't need to set ac_file
ac_file=Makefile
LD="${ORIGINAL_LD_FOR_MULTILIBS}"
. ${libiberty_topdir}/config-ml.in
fi
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fi]],
[[srcdir=${srcdir}
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host=${host}
target=${target}
with_target_subdir=${with_target_subdir}
with_build_subdir=${with_build_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}
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]])
AC_OUTPUT