From fd84361f0e77eced3524db24c90b596f1f3dad40 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Wed, 9 Jul 2025 08:02:21 +0200
Subject: [PATCH] build: On mingw, avoid link dependency from xgettext.exe to
 libstdc++.

Reported by Michele Locati <michele@locati.it> in
<https://lists.gnu.org/archive/html/bug-gettext/2024-10/msg00007.html>.

* gettext-tools/src/Makefile.am (xgettext_CXXFLAGS): New variable.
---
 gettext-tools/src/Makefile.am | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/gettext-tools/src/Makefile.am b/gettext-tools/src/Makefile.am
index 4ce51af0a..1b7faf125 100644
--- a/gettext-tools/src/Makefile.am
+++ b/gettext-tools/src/Makefile.am
@@ -480,6 +480,16 @@ endif
 # Compile-time flags for particular source files.
 msgmerge_CFLAGS = $(AM_CFLAGS) $(OPENMP_CFLAGS)
 msgmerge_CXXFLAGS = $(AM_CXXFLAGS) $(OPENMP_CFLAGS)
+# On mingw, the compiler option '-fno-threadsafe-statics' avoids requiring
+# the symbols __cxa_guard_acquire and __cxa_guard_release, which in turn
+# avoids a dependency towards libstdc++.
+if WOE32DLL
+if WINDOWS_NATIVE
+if !WINDOWS_MSVC
+xgettext_CXXFLAGS = $(AM_CXXFLAGS) -fno-threadsafe-statics
+endif
+endif
+endif
 
 # Link dependencies.
 # INTL_MACOSX_LIBS is needed because the programs depend on libintl.la
-- 
2.47.3