fix MC builds

diff --git a/src/xbt/mmalloc/mmorecore.c b/src/xbt/mmalloc/mmorecore.c
index 4a9cbb5..b99f322 100644 (file)
--- a/src/xbt/mmalloc/mmorecore.c
+++ b/src/xbt/mmalloc/mmorecore.c
@@ -17,6 +17,7 @@
 #include <fcntl.h>
 #include <sys/mman.h>
 #include <sys/wait.h>
+#include <errno.h>
 
 #include "mmprivate.h"