#
# aclocal -I .. -I ../config && autoconf && autoheader && automake
-AC_PREREQ(2.64)
AC_INIT(libssp, 1.0)
AC_CONFIG_SRCDIR(ssp.c)
AC_CANONICAL_SYSTEM
[AC_MSG_RESULT(no)])
CFLAGS="$save_CFLAGS"
+# Add CET specific flags if CET is enabled
+GCC_CET_FLAGS(CET_FLAGS)
+XCFLAGS="$XCFLAGS $CET_FLAGS"
+AC_SUBST(XCFLAGS)
+
AC_MSG_CHECKING([whether hidden visibility is supported])
AC_TRY_COMPILE([
void __attribute__((visibility ("hidden"))) bar (void) {}],,
fi
AC_MSG_CHECKING([whether symbol versioning is supported])
-cat > conftest.map <<EOF
+AC_ARG_ENABLE(symvers,
+AS_HELP_STRING([--disable-symvers],
+ [disable symbol versioning for libssp]),
+ssp_use_symver=$enableval,
+ssp_use_symver=yes)
+if test "x$ssp_use_symver" != xno; then
+ if test x$gcc_no_link = xyes; then
+ # If we cannot link, we cannot build shared libraries, so do not use
+ # symbol versioning.
+ ssp_use_symver=no
+ else
+ save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map"
+ cat > conftest.map <<EOF
FOO_1.0 {
global: *foo*; bar; local: *;
};
EOF
-save_LDFLAGS="$LDFLAGS"
-LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map"
-if test x$gcc_no_link = xyes; then
- # If we cannot link, we cannot build shared libraries, so do not use
- # symbol versioning.
- ssp_use_symver=no
-else
- AC_TRY_LINK([int foo;],[],[ssp_use_symver=yes],[ssp_use_symver=no])
+ AC_TRY_LINK([int foo;],[],[ssp_use_symver=gnu],[ssp_use_symver=no])
+ if test x$ssp_use_symver = xno; then
+ case "$target_os" in
+ solaris2*)
+ LDFLAGS="$save_LDFLAGS"
+ LDFLAGS="$LDFLAGS -fPIC -shared -Wl,-M,./conftest.map"
+ # Sun ld cannot handle wildcards and treats all entries as undefined.
+ cat > conftest.map <<EOF
+FOO_1.0 {
+ global: foo; local: *;
+};
+EOF
+ AC_TRY_LINK([int foo;],[],[ssp_use_symver=sun],[ssp_use_symver=no])
+ ;;
+ esac
+ fi
+ LDFLAGS="$save_LDFLAGS"
+ fi
fi
-LDFLAGS="$save_LDFLAGS"
AC_MSG_RESULT($ssp_use_symver)
-AM_CONDITIONAL(LIBSSP_USE_SYMVER, [test "x$ssp_use_symver" = xyes])
+AM_CONDITIONAL(LIBSSP_USE_SYMVER, [test "x$ssp_use_symver" != xno])
+AM_CONDITIONAL(LIBSSP_USE_SYMVER_GNU, [test "x$ssp_use_symver" = xgnu])
+AM_CONDITIONAL(LIBSSP_USE_SYMVER_SUN, [test "x$ssp_use_symver" = xsun])
AC_CHECK_HEADERS(alloca.h malloc.h paths.h syslog.h string.h unistd.h fcntl.h stdio.h limits.h)
AC_DEFINE(HAVE_STRNCPY)
AC_DEFINE(HAVE_STRNCAT)
else
- AC_CHECK_FUNCS(mempcpy strncpy strncat)
+ AC_CHECK_FUNCS(memmove mempcpy strncpy strncat)
fi
AC_MSG_CHECKING([whether vsnprintf is usable])
-AC_RUN_IFELSE(AC_LANG_PROGRAM([
+AC_RUN_IFELSE([AC_LANG_PROGRAM([
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
[char buf@<:@8@:>@; memset (buf, 'A', sizeof (buf));
if (foo (buf, 4, ".%s.", "CDEFG") != 7)
return 1;
- return memcmp (buf, ".CD\0AAAA", sizeof (buf)) != 0;]),
+ return memcmp (buf, ".CD\0AAAA", sizeof (buf)) != 0;])],
[ssp_have_usable_vsnprintf=define],
[ssp_have_usable_vsnprintf=undef],
[ssp_have_usable_vsnprintf=undef])
AC_SUBST(ssp_have_usable_vsnprintf)
AM_PROG_LIBTOOL
+ACX_LT_HOST_FLAGS
AC_SUBST(enable_shared)
AC_SUBST(enable_static)
+GCC_WITH_TOOLEXECLIBDIR
+
# Calculate toolexeclibdir
# Also toolexecdir, though it's only used in toolexeclibdir
case ${version_specific_libs} in
test x"$with_cross_host" != x"no"; then
# Install a library built with a cross compiler in tooldir, not libdir.
toolexecdir='$(exec_prefix)/$(target_alias)'
- toolexeclibdir='$(toolexecdir)/lib'
+ case ${with_toolexeclibdir} in
+ no)
+ toolexeclibdir='$(toolexecdir)/lib'
+ ;;
+ *)
+ toolexeclibdir=${with_toolexeclibdir}
+ ;;
+ esac
else
toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
toolexeclibdir='$(libdir)'
multilib_arg=
fi
+# Determine what GCC version number to use in filesystem paths.
+GCC_BASE_VER
+
AC_CONFIG_FILES([Makefile ssp/ssp.h])
AC_OUTPUT