diff -r 1cca90ce0481 -r ec1cffe6d30b kconfig/lex.zconf.c
--- a/kconfig/lex.zconf.c	Fri Oct 17 12:47:53 2008 +0000
+++ b/kconfig/lex.zconf.c	Thu May 21 19:00:55 2009 +0000
@@ -2370,11 +2370,14 @@
 	current_buf = buf;
 
 	if (file->flags & FILE_BUSY) {
-		printf("recursive scan (%s)?\n", name);
+		printf("%s:%d: do not source '%s' from itself\n",
+		       zconf_curname(), zconf_lineno(), name);
 		exit(1);
 	}
 	if (file->flags & FILE_SCANNED) {
-		printf("file %s already scanned?\n", name);
+		printf("%s:%d: file '%s' is already sourced from '%s'\n",
+		       zconf_curname(), zconf_lineno(), name,
+		       file->parent->name);
 		exit(1);
 	}
 	file->flags |= FILE_BUSY;