From 7e7c4f7b7ee4e42b1a7f9a6cbd0be7f56e6f0710 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@80x24.org>
Date: Thu, 28 Jul 2016 00:02:02 +0000
Subject: linux_inet_diag: GCC attribute format check

This helps the compiler detect bugs and
quiets down a -Wsuggest-attribute=format warning
---
 ext/raindrops/linux_inet_diag.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ext/raindrops/linux_inet_diag.c b/ext/raindrops/linux_inet_diag.c
index 58415c6..5276a28 100644
--- a/ext/raindrops/linux_inet_diag.c
+++ b/ext/raindrops/linux_inet_diag.c
@@ -214,6 +214,10 @@ static const char *addr_any(sa_family_t family)
 	return ipv6;
 }
 
+#ifdef __GNUC__
+static void bug_warn_nogvl(const char *, ...)
+	__attribute__((format(printf,1,2)));
+#endif
 static void bug_warn_nogvl(const char *fmt, ...)
 {
 	va_list ap;
-- 
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