added missing include

diff --git a/lib/gfxtools.c b/lib/gfxtools.c
index 06930ec..327a0cb 100644 (file)
--- a/lib/gfxtools.c
+++ b/lib/gfxtools.c
@@ -21,6 +21,7 @@
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <memory.h>
 #include <math.h>
 #include <assert.h>