--- freetype-2.2.1/ft2demos-2.2.1/src/ftmulti.c	2010-07-22 19:01:47.000000000 +0200
+++ freetype-2.2.1/ft2demos-2.2.1/src/ftmulti.c	2010-07-22 19:02:14.000000000 +0200
@@ -819,7 +819,7 @@
             sprintf( temp, "  %.50s:%g",
                            multimaster->axis[n].name,
                            design_pos[n]/65536. );
-            strcat( Header, temp );
+            strncat( Header, temp, sizeof( Header ) - strlen( Header ) - 1 );
           }
         }
         grWriteCellString( &bit, 0, 16, Header, fore_color );