From 2e314136ed58b6860c667e379bef22190fe84aa2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <debian@jff-webhosting.net>
Date: Sat, 22 Nov 2025 14:50:10 +0100
Subject: New upstream version 5.2

---
 m4/gcc4_visibility.m4 | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'm4/gcc4_visibility.m4')

diff --git a/m4/gcc4_visibility.m4 b/m4/gcc4_visibility.m4
index 708d42b..e58a0d7 100644
--- a/m4/gcc4_visibility.m4
+++ b/m4/gcc4_visibility.m4
@@ -19,3 +19,24 @@ AC_DEFUN([CHECK_GCC_FVISIBILITY], [
 	CFLAGS="$saved_CFLAGS"
 	AC_LANG_POP([C])
 ])
+
+AC_DEFUN([CHECK_LD_SYMVERS], [
+	AC_MSG_CHECKING([linker support for symbol maps])
+	echo '{global:*;};' >conftest.map
+	saved_LDFLAGS="$LDFLAGS"
+	LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
+	AC_LINK_IFELSE([AC_LANG_SOURCE([ int main() { return 0; } ])],
+		[with_ldsym=yes], [with_ldsym=no])
+	LDFLAGS="$saved_LDFLAGS"
+	rm conftest.map
+	AM_CONDITIONAL([WITH_LDSYM], [test "$with_ldsym" = yes])
+	AS_IF([test -n "$LD" && $LD -z help >/dev/null 2>/dev/null], [with_sun_ld=yes], [with_sun_ld=no])
+	AM_CONDITIONAL([WITH_SUN_LD], [test "$with_sun_ld" = yes])
+	AS_IF([test "$with_ldsym" = yes], [
+		AC_MSG_RESULT([-Wl,--version-script])
+	], [test "$with_sun_ld" = yes], [
+		AC_MSG_RESULT([-M])
+	], [
+		AC_MSG_RESULT([no])
+	])
+])
-- 
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