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|
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_INIT([GNU Vtable Verification Runtime Library], 1.0,,[libvtv])
#AC_INIT(package-unused, version-unused, libvtv)
AC_CONFIG_SRCDIR([vtv_rts.h])
AM_ENABLE_MULTILIB(, ..)
# -------
# Options
# -------
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
AC_ARG_ENABLE(version-specific-runtime-libs,
[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
[case "$enableval" in
yes) version_specific_libs=yes ;;
no) version_specific_libs=no ;;
*) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
esac],
[version_specific_libs=no])
AC_MSG_RESULT($version_specific_libs)
# Do not delete or change the following two lines. For why, see
# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
AC_CANONICAL_SYSTEM
target_alias=${target_alias-$host_alias}
AC_SUBST(target_alias)
GCC_LIBSTDCXX_RAW_CXX_FLAGS
AC_USE_SYSTEM_EXTENSIONS
# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
AC_MSG_CHECKING([for --enable-vtable-verify])
AC_ARG_ENABLE(vtable-verify,
[ --enable-vtable-verify Enable vtable verification feature ],
[case "$enableval" in
yes) enable_vtable_verify=yes ;;
no) enable_vtable_verify=no ;;
*) enable_vtable_verify=no;;
esac],
[enable_vtable_verify=no])
AC_MSG_RESULT($enable_vtable_verify)
# See if supported.
unset VTV_SUPPORTED
AC_MSG_CHECKING([for host support for vtable verification])
. ${srcdir}/configure.tgt
case ${host} in
*-*-solaris2*)
# libvtv requires init priority support, which depends on the linker
# used on Solaris.
AC_CACHE_CHECK(for init priority support, libvtv_cv_init_priority, [
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,
[[void ip (void) __attribute__ ((constructor (1)));]])],
[libgcc_cv_init_priority=yes],[libgcc_cv_init_priority=no])])
if test x$libvtv_cv_init_priority = xno; then
VTV_SUPPORTED=no
fi
# FIXME: Maybe check for dl_iterate_phdr, too? Should be covered by
# configure.tgt restricting to libvtv to Solaris 11+.
;;
esac
AC_MSG_RESULT($VTV_SUPPORTED)
# Decide if it's usable.
use_vtable_verify=no
if test "x$VTV_SUPPORTED" = "xyes"; then
if test "x$enable_vtable_verify" = "xyes"; then
use_vtable_verify=yes
AC_MSG_NOTICE(using vtable verification)
fi
fi
AM_CONDITIONAL(ENABLE_VTABLE_VERIFY, test $use_vtable_verify = yes)
AM_INIT_AUTOMAKE(foreign no-dist)
AM_MAINTAINER_MODE
LIBVTV_CONFIGURE
GCC_WITH_TOOLEXECLIBDIR
# Calculate toolexeclibdir
# Also toolexecdir, though it's only used in toolexeclibdir
case ${version_specific_libs} in
yes)
# Need the gcc compiler version to know where to install libraries
# and header files if --enable-version-specific-runtime-libs option
# is selected.
toolexecdir='$(libdir)/gcc/$(target_alias)'
toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
;;
no)
if test -n "$with_cross_host" &&
test x"$with_cross_host" != x"no"; then
# Install a library built with a cross compiler in tooldir, not libdir.
toolexecdir='$(exec_prefix)/$(target_alias)'
case ${with_toolexeclibdir} in
no)
toolexeclibdir='$(toolexecdir)/lib'
;;
*)
toolexeclibdir=${with_toolexeclibdir}
;;
esac
else
toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
toolexeclibdir='$(libdir)'
fi
multi_os_directory=`$CC -print-multi-os-directory`
case $multi_os_directory in
.) ;; # Avoid trailing /.
*) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
esac
;;
esac
AC_SUBST(toolexecdir)
AC_SUBST(toolexeclibdir)
AC_GNU_SOURCE
AC_CHECK_FUNCS([__secure_getenv])
AC_GNU_SOURCE
AC_CHECK_FUNCS([secure_getenv])
AC_CHECK_FUNCS([getexecname __fortify_fail])
# Check for programs.
m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AC_PROG_CC
AC_PROG_CXX
m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
AM_PROG_CC_C_O
AC_SUBST(CFLAGS)
AC_SUBST(CXXFLAGS)
# Newer automakes demand CCAS and CCASFLAGS.
: ${CCAS='$(CC)'}
: ${CCASFLAGS='$(CFLAGS)'}
AC_SUBST(CCAS)
AC_SUBST(CCASFLAGS)
AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
# Configure libtool
AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL
ACX_LT_HOST_FLAGS
AC_SUBST(enable_shared)
AC_SUBST(enable_static)
# For libtool versioning info, format is CURRENT:REVISION:AGE
libtool_VERSION=1:0:0
AC_SUBST(libtool_VERSION)
XCFLAGS="-D_GNU_SOURCE -Wall -Wextra -fno-exceptions"
# Add CET specific flags if Intel CET is enabled.
GCC_CET_FLAGS(CET_FLAGS)
XCFLAGS="$XCFLAGS $CET_FLAGS"
AC_SUBST(XCFLAGS)
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
AC_CONFIG_FILES([Makefile])
if test "x$VTV_SUPPORTED" = "xyes"; then
AC_CONFIG_FILES(AC_FOREACH([DIR], [testsuite], [DIR/Makefile ]),
[cat > vpsed$$ << \_EOF
s!`test -f '$<' || echo '$(srcdir)/'`!!
_EOF
sed -f vpsed$$ $ac_file > tmp$$
mv tmp$$ $ac_file
rm vpsed$$
echo 'MULTISUBDIR =' >> $ac_file
ml_norecursion=yes
. ${multi_basedir}/config-ml.in
AS_UNSET([ml_norecursion])
])
fi
case "$target_os" in
cygwin*|mingw32*)
vtv_cygmin="yes"
;;
*)
vtv_cygmin="no"
;;
esac
AM_CONDITIONAL(VTV_CYGMIN, test $vtv_cygmin = yes)
AC_CHECK_FUNCS([_obstack_begin])
AM_CONDITIONAL(VTV_NO_OBSTACK, test $ac_cv_func__obstack_begin = no)
# Determine what GCC version number to use in filesystem paths.
GCC_BASE_VER
AC_OUTPUT
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