Get prototype from system header.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15220

diff --git a/none/tests/linux/mremap4.c b/none/tests/linux/mremap4.c
index 1f83dab31eb673f6453b09462c088c6b8c6021a2..3fe2307de7a8d5969c062351d736160f6700f494 100644 (file)
--- a/none/tests/linux/mremap4.c
+++ b/none/tests/linux/mremap4.c
@@ -1,12 +1,11 @@
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <stdlib.h>
 #include <assert.h>
 #include <sys/ipc.h>
 #include <sys/shm.h>
 #include <sys/stat.h>
-
-
-extern void *mremap(void *, size_t, size_t, int, ...);
+#include <sys/mman.h>
 
 int main()
 {