From: Bruno Haible <bruno@clisp.org>
Date: Thu, 12 Dec 2024 09:40:53 +0000 (+0100)
Subject: Silence -Wstack-protector warnings from Ubuntu gcc 13 and 14.
X-Git-Tag: v0.24~109
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f2a12f324018b268376f1cc3e34c60b753851138;p=thirdparty%2Fgettext.git

Silence -Wstack-protector warnings from Ubuntu gcc 13 and 14.

* m4/more-warnings.m4 (gt_MORE_WARNINGS): Silence -Wstack-protector also
for newer gcc versions.
---

diff --git a/m4/more-warnings.m4 b/m4/more-warnings.m4
index 13fb27d79..1a8afd9fe 100644
--- a/m4/more-warnings.m4
+++ b/m4/more-warnings.m4
@@ -1,5 +1,5 @@
 # more-warnings.m4
-# serial 3 (gettext-0.23)
+# serial 4 (gettext-0.24)
 dnl Copyright (C) 2023-2024 Free Software Foundation, Inc.
 dnl This file is free software, distributed under the terms of the GNU
 dnl General Public License.  As a special exception to the GNU General
@@ -136,17 +136,18 @@ AS_HELP_STRING([[--disable-more-warnings]], [obey exactly the warning options sp
     dnl that the compiler could often infer and which have little effect on the
     dnl performance of the generated code.
     nw="$nw -Wsuggest-attribute=cold"
-    dnl With GCC 11 and older, there warnings are pointless:
+    dnl With GCC 11 and older and Ubuntu GCC, these warnings are pointless:
     dnl "warning: stack protector not protecting local variables: variable
-    dnl length buffer [-Wstack-protector]", "[-Wanalyzer-use-after-free],
-    dnl "[-Wanalyzer-free-of-non-heap]".
+    dnl length buffer [-Wstack-protector]".
+    nw="$nw -Wstack-protector"
+    dnl With GCC 11 and older, these warnings are pointless:
+    dnl "[-Wanalyzer-use-after-free], "[-Wanalyzer-free-of-non-heap]".
     AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
       #if __GNUC__ > 11
       #error "You are lucky"
       #endif
       ]])],
-      [nw="$nw -Wstack-protector"
-       nw="$nw -Wanalyzer-use-after-free -Wanalyzer-free-of-non-heap"
+      [nw="$nw -Wanalyzer-use-after-free -Wanalyzer-free-of-non-heap"
       ])
 
     dnl Setup the list of meaningful warning options for the C compiler.