[rpms/m4] rawhide: Fix SIGSEGV in gnulib posix_spawn_file_actions_addchdir tests

[rpms/m4] rawhide: Fix SIGSEGV in gnulib posix_spawn_file_actions_addchdir tests

[Yaakov Selkowitz]

            A new commit has been pushed.

            Repo   : rpms/m4
            Branch : rawhide
            Commit : d91104adeb7f2ca880ec3cb7d5bd6bbcf2d7c9d0
            Author : Yaakov Selkowitz <yselkowi@redhat.com>
            Date   : 2026-07-30T12:14:36-04:00
            Stats  : +33/-1 in 2 file(s)
            URL    : https://src.fedoraproject.org/rpms/m4/c/d91104adeb7f2ca880ec3cb7d5bd6bbcf2d7c9d0?branch=rawhide

            Log:
            Fix SIGSEGV in gnulib posix_spawn_file_actions_addchdir tests

https://lists.gnu.org/archive/html/bug-gnulib/2026-07/msg00165.html
https://src.fedoraproject.org/rpms/gettext/pull-request/42

Resolves: rhbz#2504314

---
diff --git a/m4-1.4.21-gnulib-posix_addchdr.patch b/m4-1.4.21-gnulib-posix_addchdr.patch
new file mode 100644
index 0000000..d2d4d4d
--- /dev/null
+++ b/m4-1.4.21-gnulib-posix_addchdr.patch
@@ -0,0 +1,24 @@
+diff -ur a/m4/posix_spawn_faction_addchdir.m4 b/m4/posix_spawn_faction_addchdir.m4
+--- a/m4/posix_spawn_faction_addchdir.m4	2026-01-02 15:46:16.000000000 +0530
++++ b/m4/posix_spawn_faction_addchdir.m4	2026-07-27 23:50:21.890528572 +0530
+@@ -1,5 +1,5 @@
+ # posix_spawn_faction_addchdir.m4
+-# serial 2
++# serial 3
+ dnl Copyright (C) 2018-2026 Free Software Foundation, Inc.
+ dnl This file is free software; the Free Software Foundation
+ dnl gives unlimited permission to copy and/or distribute it,
+@@ -11,10 +11,11 @@
+   AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+   AC_REQUIRE([AC_PROG_CC])
+   gl_POSIX_SPAWN
+-  AC_CHECK_FUNCS_ONCE([posix_spawn_file_actions_addchdir])
++  AC_CHECK_DECLS([posix_spawn_file_actions_addchdir],,,
++    [[#include <spawn.h>]])
+   gl_CHECK_FUNCS_ANDROID([posix_spawn_file_actions_addchdir_np],
+     [[#include <spawn.h>]])
+-  if test $ac_cv_func_posix_spawn_file_actions_addchdir = yes; then
++  if test $ac_cv_have_decl_posix_spawn_file_actions_addchdir = yes; then
+     dnl This function is not yet standardized. Therefore override the
+     dnl system's implementation always.
+     REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=1

diff --git a/m4.spec b/m4.spec
index bf32457..fadd4aa 100644
--- a/m4.spec
+++ b/m4.spec
@@ -1,10 +1,13 @@
 Summary: GNU macro processor
 Name: m4
 Version: 1.4.21
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: GPL-3.0-or-later AND GFDL-1.3-or-later AND FSFULLR AND GPL-3.0-or-later WITH Autoconf-exception-generic-3.0 AND GPL-3.0-or-later WITH Texinfo-exception AND GPL-2.0-or-later WITH Autoconf-exception-generic AND GPL-3.0-or-later WITH Autoconf-exception-generic-3.0 AND MIT
 Source0: https://ftp.gnu.org/gnu/m4/m4-%{version}.tar.xz
 Source1: https://ftp.gnu.org/gnu/m4/m4-%{version}.tar.xz.sig
+# Fix SIGSEGV in gnulib posix_spawn_file_actions_addchdir tests
+# https://lists.gnu.org/archive/html/bug-gnulib/2026-07/msg00165.html
+Patch0:  m4-1.4.21-gnulib-posix_addchdr.patch
 URL: https://www.gnu.org/software/m4/
 BuildRequires: make
 BuildRequires: gcc autoconf automake
@@ -28,6 +31,8 @@ Install m4 if you need a macro processor.
 
 %prep
 %setup -q
+%patch -P0 -p1
+autoreconf
 chmod 644 COPYING
 
 %build
@@ -50,6 +55,9 @@ make %{?_smp_mflags} check
 %{_mandir}/man1/m4.1*
 
 %changelog
+* Thu Jul 30 2026 Yaakov Selkowitz <yselkowi@redhat.com> - 1.4.21-3
+- Fix SIGSEGV in gnulib posix_spawn_file_actions_addchdir tests
+
 * Thu Jul 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.21-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild