1 files changed, 5 insertions, 0 deletions
diff --git a/turtlegr.c b/turtlegr.c
index c74663b..51d81dd 100644
--- a/turtlegr.c
+++ b/turtlegr.c
@@ -66,6 +66,7 @@
 #include        <math.h>        /* sin(), cos(), fmod()         */
 #include	<stdlib.h>	/* atexit()			*/
 
+
 /****************************************************/
 /*****  X11 specific includes & defines         *****/
 /****************************************************/
@@ -157,6 +158,10 @@ static  char    s_gr_moveTo[]           = "move-to!";
 static  char    s_gr_setdot[]           = "set-dot!";
 static  char    s_gr_validXYC[]         = "valid-xyc?";
 
+#ifndef ASSERT
+#define ASSERT(ignore1, ignore2, ignore3, ignore4)
+#endif
+
 #ifdef __GNUC__
 inline
 #else