Fixed warning

diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c
index c9ecc7411101fa7380c1204f0c4e9d468b21b1d6..97c10018c162414ee4f42e3a834e8cdc38d2199b 100644 (file)
--- a/Zend/zend_alloc.c
+++ b/Zend/zend_alloc.c
@@ -109,8 +109,12 @@ static void zend_mm_panic(const char *message)
 
 #if defined(HAVE_MEM_MMAP_ANON) || defined(HAVE_MEM_MMAP_ZERO)
 # ifdef HAVE_MREMAP
+#  ifndef _GNU_SOURCE
 #   define _GNU_SOURCE
+#  endif
+#  ifndef __USE_GNU
 #   define __USE_GNU
+#  endif
 # endif
 # include <sys/mman.h>
 # ifndef MAP_ANON