Index: trunk/Ohana/src/tools/src/mktemp.c
===================================================================
--- trunk/Ohana/src/tools/src/mktemp.c	(revision 27590)
+++ trunk/Ohana/src/tools/src/mktemp.c	(revision 27591)
@@ -2,4 +2,8 @@
 # include <stdlib.h>
 # include <string.h>
+#ifdef __APPLE__
+// mkdtemp is aparently declared here on macos
+#include <unistd.h>
+#endif
 
 # define FALSE 0