--- custom.c.orig	2013-06-08 00:00:00.000000000 +0900
+++ custom.c	2013-07-10 19:55:53.000000000 +0900
@@ -561,7 +561,7 @@
 	{"FD_URLKCODE", &urlkcode, DEFVAL(NOCNV), URLKC_E, T_KNAM},
 #endif
 #if	!defined (_NOENGMES) && !defined (_NOJPNMES)
-	{"FD_MESSAGELANG", &messagelang, DEFVAL(NOCNV), MESL_E, T_MESLANG},
+	{"FD_MESSAGELANG", &messagelang, DEFVAL("C"), MESL_E, T_MESLANG},
 #endif
 #ifdef	DEP_FILECONV
 	{"FD_SJISPATH", &sjispath, DEFVAL(SJISPATH), SJSP_E, T_KPATHS},
@@ -857,7 +857,9 @@
 #if	defined (DEP_KCONV) || (!defined (_NOENGMES) && !defined (_NOJPNMES))
 		case T_MESLANG:
 # ifndef	_NOCATALOG
+			if (!cp) cp = def_str(no);
 			catname = cp;
+			chkcatalog();
 /*FALLTHRU*/
 # endif
 		case T_KIN: