From 42a6621d3057e03653233076c5d06c079dee5c22 Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Tue, 4 Jun 2019 16:02:26 +0200
Subject: [PATCH] BUILD: tools: do not use the weak attribute for trace() on
 obsolete linkers

The default dummy trace() function is marked weak in order to be easily
replaced at link time. Some linkers are having issues with the weak
attribute, so let's not mark it on these linkers. They will simply not
be able to build with TRACE=1, which is no big deal since it's only used
by developers.
---
 src/standard.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/standard.c b/src/standard.c
index 1c2e5099c..1dec56123 100644
--- a/src/standard.c
+++ b/src/standard.c
@@ -4298,7 +4298,9 @@ int parse_dotted_uints(const char *str, unsigned int **nums, size_t *sz)
 }
 
 /* do nothing, just a placeholder for debugging calls, the real one is in trace.c */
+#ifndef USE_OBSOLETE_LINKER
 __attribute__((weak,format(printf, 1, 2)))
+#endif
 void trace(char *msg, ...)
 {
 }