From 9b20ca275dba758a194073936cde7c95311bd51e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Mon, 23 Jan 2023 22:52:47 +0100
Subject: [PATCH] Verify 'W_EXITCODE' only when we provide our own definition.

Fixes <https://bugs.gnu.org/60971>.
Reported by lloda <lloda@sarc.name> and Greg Troxel <gdt@lexort.com>.

On macOS and NetBSD, 'WEXITSTATUS' expects an lvalue so the expression
passed to 'verify' would be invalid.

* libguile/posix.c: Move 'verify' assertion within #ifdef.
---
 libguile/posix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libguile/posix.c b/libguile/posix.c
index 74c743119..0b1fe2637 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -105,8 +105,8 @@
 # else
 #  define W_EXITCODE(ret, sig)   ((ret) << 8 | (sig))
 # endif
-#endif
 verify (WEXITSTATUS (W_EXITCODE (127, 0)) == 127);
+#endif
 
 
 #include <signal.h>