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fix(bash-4.4.23-1): make SIGRETURN robust on linux when VOID_SIGHANDLER probe mismatches

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vxtls 2026-03-03 12:56:14 -05:00
parent 1009bfa847
commit 4e67035e5e
1 changed files with 19 additions and 0 deletions
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steps-guix/bash-4.4.23-1/patches/fix-sigreturn-on-linux.patch Normal file
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@ -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)