diff -Naur asterisk.orig/apps/app_directory.c asterisk/apps/app_directory.c
--- asterisk.orig/apps/app_directory.c	2005-04-21 08:02:43.000000000 +0200
+++ asterisk/apps/app_directory.c	2005-05-06 12:33:18.534736000 +0200
@@ -329,7 +329,7 @@
 			while(v) {
 				/* Find a candidate extension */
 				start = strdup(v->value);
-				if (start && !strcasestr(start, "hidefromdir=yes")) {
+				if (start && !ast_strcasestr(start, "hidefromdir=yes")) {
 					stringp=start;
 					strsep(&stringp, ",");
 					pos = strsep(&stringp, ",");