- added include

SVN-Revision: 1632

diff --git a/src/level_subset.cpp b/src/level_subset.cpp
index ba5d803..39bc622 100644 (file)
--- a/src/level_subset.cpp
+++ b/src/level_subset.cpp
@@ -19,6 +19,8 @@
 //  02111-1307, USA.
 
 #include <assert.h>
+#include <unistd.h>
+
 #include "app/setup.h"
 #include "level.h"
 #include "app/globals.h"