From 156e745be9f6a1b19b0f8e2a931148786d7acad4 Mon Sep 17 00:00:00 2001
From: Dan Cross <cross@gajendra.net>
Date: Wed, 23 Jul 2025 06:47:21 -0400
Subject: all: remove need for `-fcommon`

Use `extern` where appropriate so that we can remove `-fcommon`
on macOS and others.  On macOS, `-fcommon` generates a number of
linker warnings.

I've tested building on macOS, Linux, FreeBSD, NetBSD, OpenBSD
and illumos.  I am not in a position to test on AIX or other
more esoteric platforms, however.
---
 src/lib9/argv0.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/lib9')

diff --git a/src/lib9/argv0.c b/src/lib9/argv0.c
index 4c61f444..b9a9b8b4 100644
--- a/src/lib9/argv0.c
+++ b/src/lib9/argv0.c
@@ -1,5 +1,6 @@
 #include <lib9.h>
 
+#pragma weak argv0
 char *argv0;
 
 /*
-- 
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