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