--- ext/gd/libgd/gdft.c	2006-09-15 18:11:39.000000000 +0200
+++ ext/gd/libgd/gdft.c.oden	2007-02-07 12:54:45.000000000 +0100
@@ -983,7 +983,7 @@
 					} else {
 						ch = c & 0xFF;	/* don't extend sign */
 					}
-					next++;
+					if (*next) next++;
 				}
 				break;
 			case gdFTEX_Big5: {