From: Bruno Haible <bruno@clisp.org>
Date: Tue, 14 Apr 2026 18:38:39 +0000 (+0200)
Subject: sigaction: Fix test failure on native Windows.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e304c8478444ba785f58c6bfabfe7acfbc047a74;p=thirdparty%2Fgnulib.git

sigaction: Fix test failure on native Windows.

* lib/sigaction.c (sigaction): Hide the sigaction_handler from the
caller.
---

diff --git a/ChangeLog b/ChangeLog
index 6d9af7ad40..9015a55ae8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2026-04-14  Bruno Haible  <bruno@clisp.org>
+
+	sigaction: Fix test failure on native Windows.
+	* lib/sigaction.c (sigaction): Hide the sigaction_handler from the
+	caller.
+
 2026-04-13  Bruno Haible  <bruno@clisp.org>
 
 	stdbit-h: Port to Intel icpx C++ compiler.
diff --git a/lib/sigaction.c b/lib/sigaction.c
index 07efa9ea17..edd12e1e53 100644
--- a/lib/sigaction.c
+++ b/lib/sigaction.c
@@ -171,6 +171,10 @@ sigaction (int sig, const struct sigaction *restrict act,
           signal (sig, oact->sa_handler);
           oact->sa_flags = SA_RESETHAND | SA_NODEFER;
           sigemptyset (&oact->sa_mask);
+          /* The sigaction_handler is an internal detail.  It must not be
+             visible to the caller.  */
+          if (oact->sa_handler == sigaction_handler)
+            *oact = action_array[sig];
         }
     }