diff -r 1cca90ce0481 -r f5ebe8c429dc kconfig/lex.zconf.c
--- a/kconfig/lex.zconf.c	Fri Oct 17 12:47:53 2008 +0000
+++ b/kconfig/lex.zconf.c	Tue Aug 03 06:17:51 2010 +0200
@@ -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;