From: Bruno Haible <bruno@clisp.org>
Date: Thu, 6 Nov 2025 19:41:07 +0000 (+0100)
Subject: posix_spawn-internal: Don't use vfork() on Solaris/SPARC.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bbf98b12a1feece09cae9a390c5bdd851e885b9b;p=thirdparty%2Fgnulib.git

posix_spawn-internal: Don't use vfork() on Solaris/SPARC.

Reported by Pádraig Brady <P@draigBrady.com> in
<https://lists.gnu.org/archive/html/coreutils/2025-11/msg00052.html>.

* lib/spawni.c (__spawni): Don't use vfork() on Solaris/SPARC.
---

diff --git a/ChangeLog b/ChangeLog
index 551a7acae0..e40604e420 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2025-11-06  Bruno Haible  <bruno@clisp.org>
+
+	posix_spawn-internal: Don't use vfork() on Solaris/SPARC.
+	Reported by Pádraig Brady <P@draigBrady.com> in
+	<https://lists.gnu.org/archive/html/coreutils/2025-11/msg00052.html>.
+	* lib/spawni.c (__spawni): Don't use vfork() on Solaris/SPARC.
+
 2025-11-06  Bruno Haible  <bruno@clisp.org>
 
 	stdio-windows: Add fallback code for very old mingw without vasprintf.
diff --git a/lib/spawni.c b/lib/spawni.c
index a1f3f84a98..b99f8eeabb 100644
--- a/lib/spawni.c
+++ b/lib/spawni.c
@@ -882,7 +882,8 @@ __spawni (pid_t *pid, const char *file,
   (void) &flags;
 
   /* Generate the new process.  */
-#if HAVE_VFORK
+  /* Use of vfork() on Solaris/SPARC crashes; avoid it there.  */
+#if HAVE_VFORK && !(defined __sun && defined __sparc)
   if ((flags & POSIX_SPAWN_USEVFORK) != 0
       /* If no major work is done, allow using vfork.  Note that we
          might perform the path searching.  But this would be done by