From d2d3fabf308692c35d0a4690b958bf438db67a45 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Sun, 13 Sep 2020 10:07:50 +0200
Subject: rtems-bsd-cxx: Undefine _GNU_SOURCE

At least the powerpc C++ compiler defines currently _GNU_SOURCE due to a GCC
configuration error.  This leads to conflicting qsort_r() definitions.

As a workaround undefine _GNU_SOURCE for this C++ compatibility test file.

Update #4078.
---
 rtemsbsd/rtems/rtems-bsd-cxx.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rtemsbsd/rtems/rtems-bsd-cxx.cc b/rtemsbsd/rtems/rtems-bsd-cxx.cc
index aadb25af..f6ec78e6 100644
--- a/rtemsbsd/rtems/rtems-bsd-cxx.cc
+++ b/rtemsbsd/rtems/rtems-bsd-cxx.cc
@@ -31,6 +31,7 @@
 
 #define __STDC_LIMIT_MACROS
 #define __STDC_CONSTANT_MACROS
+#undef _GNU_SOURCE
 
 #include <machine/rtems-bsd-kernel-space.h>
 
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