From 4e67035e5e610907786ef4aa7af704599bd5aec9 Mon Sep 17 00:00:00 2001
From: vxtls <187420201+vxtls@users.noreply.github.com>
Date: Tue, 3 Mar 2026 12:56:14 -0500
Subject: [PATCH] fix(bash-4.4.23-1): make SIGRETURN robust on linux when
 VOID_SIGHANDLER probe mismatches

---
 .../patches/fix-sigreturn-on-linux.patch      | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 steps-guix/bash-4.4.23-1/patches/fix-sigreturn-on-linux.patch

diff --git a/steps-guix/bash-4.4.23-1/patches/fix-sigreturn-on-linux.patch b/steps-guix/bash-4.4.23-1/patches/fix-sigreturn-on-linux.patch
new file mode 100644
index 00000000..9276b854
--- /dev/null
+++ b/steps-guix/bash-4.4.23-1/patches/fix-sigreturn-on-linux.patch
@@ -0,0 +1,19 @@
+SPDX-License-Identifier: GPL-3.0-or-later
+
+Fix SIGRETURN for Linux builds when VOID_SIGHANDLER probe is inaccurate.
+
+On modern Linux toolchains, signal handlers return void. If VOID_SIGHANDLER
+is not defined during configure probing, SIGRETURN expands to return(n),
+which fails in void handlers (e.g. eval.c: alrm_catcher).
+
+--- bash-4.4/sig.h
++++ bash-4.4/sig.h
+@@ -34,7 +34,7 @@
+ #define sighandler RETSIGTYPE
+ typedef RETSIGTYPE SigHandler __P((int));
+ 
+-#if defined (VOID_SIGHANDLER)
++#if defined (VOID_SIGHANDLER) || defined (__linux__)
+ #  define SIGRETURN(n)	return
+ #else
+ #  define SIGRETURN(n)	return(n)