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# Copyright © 2019, 2022 Guillem Jover <guillem@hadrons.org>
# LIBBSD_LINKER_VERSION_SCRIPT
# ----------------------------
AC_DEFUN([LIBBSD_LINKER_VERSION_SCRIPT], [
AC_CACHE_CHECK([if ld supports --version-script flag],
[libbsd_cv_version_script], [
echo "{ global: symbol; local: *; };" >conftest.map
save_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
AC_LINK_IFELSE([
AC_LANG_PROGRAM([[
extern int symbol(void);
int symbol(void) { return 0; }
]], [[
]])
], [
libbsd_cv_version_script=yes
], [
libbsd_cv_version_script=no
])
LDFLAGS="$save_LDFLAGS"
rm -f conftest.map
])
AM_CONDITIONAL([HAVE_LINKER_VERSION_SCRIPT],
[test "x$libbsd_cv_version_script" = "xyes"])
])
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