From b216435bb362df10c45f544b78d8c884eaa901fd Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Fri, 8 Jan 2016 07:01:02 +0000
Subject: [PATCH 21/32] Define _GNU_SOURCE for MREMAP_MAYMOVE definition

musl guards MREMAP_MAYMOVE with _GNU_SOURCE unlike glibc which uses
__USE_GNU

Fixes errors like
error: 'MREMAP_MAYMOVE' undeclared (first use in this function)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 testcases/kernel/syscalls/mremap/mremap01.c | 4 +++-
 testcases/kernel/syscalls/mremap/mremap02.c | 2 ++
 testcases/kernel/syscalls/mremap/mremap03.c | 2 ++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/syscalls/mremap/mremap01.c b/testcases/kernel/syscalls/mremap/mremap01.c
index d63d1e4..24ca174 100644
--- a/testcases/kernel/syscalls/mremap/mremap01.c
+++ b/testcases/kernel/syscalls/mremap/mremap01.c
@@ -76,10 +76,12 @@
  */
 #include <unistd.h>
 #include <errno.h>
+#include <fcntl.h>
+#define _GNU_SOURCE
 #define __USE_GNU
 #include <sys/mman.h>
 #undef __USE_GNU
-#include <fcntl.h>
+#undef _GNU_SOURCE
 
 #include "test.h"
 
diff --git a/testcases/kernel/syscalls/mremap/mremap02.c b/testcases/kernel/syscalls/mremap/mremap02.c
index 5a51b9a..a530a6b 100644
--- a/testcases/kernel/syscalls/mremap/mremap02.c
+++ b/testcases/kernel/syscalls/mremap/mremap02.c
@@ -75,9 +75,11 @@
 #include <errno.h>
 #include <unistd.h>
 #include <fcntl.h>
+#define _GNU_SOURCE
 #define __USE_GNU
 #include <sys/mman.h>
 #undef __USE_GNU
+#undef _GNU_SOURCE
 
 #include "test.h"
 
diff --git a/testcases/kernel/syscalls/mremap/mremap03.c b/testcases/kernel/syscalls/mremap/mremap03.c
index 12e3829..9b39f8b 100644
--- a/testcases/kernel/syscalls/mremap/mremap03.c
+++ b/testcases/kernel/syscalls/mremap/mremap03.c
@@ -76,9 +76,11 @@
 #include <errno.h>
 #include <unistd.h>
 #include <fcntl.h>
+#define _GNU_SOURCE
 #define __USE_GNU
 #include <sys/mman.h>
 #undef __USE_GNU
+#undef _GNU_SOURCE
 
 #include "test.h"
 
-- 
2.7.0