--- tests/mapper.c	2014-10-06 14:46:27.000000000 -0400
+++ tests/mapper.c	2014-10-06 14:47:00.000000000 -0400
@@ -39,6 +39,9 @@ WITH THE SOFTWARE OR THE USE OR OTHER DE
 #if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
 # define MAP_ANONYMOUS MAP_ANON
 #endif
+#if !defined(MAP_NORESERVE)
+# define MAP_NORESERVE 0
+#endif
 
 int
 main (void)