From 80f3bc4812145c13c024262ef1f4b84fed9408f9 Mon Sep 17 00:00:00 2001
From: Bernd Kuhls <bernd.kuhls@t-online.de>
Date: Fri, 24 Aug 2018 16:38:42 +0200
Subject: [PATCH] _GNU_SOURCE needed for EAI_INPROGRESS
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Define of _GNU_SOURCE is needed to be able to use EAI_INPROGRESS in
loop.c.

This patch fixes a build error

loop.c:334:17: error: ‘EAI_INPROGRESS’ undeclared (first use in this function)
        if(rc == EAI_INPROGRESS){

occuring with a glibc-2.27-based buildroot toolchain for sparc64

Target: sparc64-buildroot-linux-gnu
[...]
gcc version 6.4.0 (Buildroot 2018.05)

Source:
http://autobuild.buildroot.org/toolchains/tarballs/br-sparc64-full-2018.05.tar.bz2
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
---
 config.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config.h b/config.h
index 5e76e899..97ac6be9 100644
--- a/config.h
+++ b/config.h
@@ -15,6 +15,7 @@
 #  define _POSIX_C_SOURCE 200809L
 #endif
 
+#define _GNU_SOURCE
 
 /* ============================================================
  * Compatibility defines