--- xxgdb-1.12/calldbx.c.orig	2004-05-02 14:56:23.000000000 +0900
+++ xxgdb-1.12/calldbx.c	2004-05-02 15:01:35.000000000 +0900
@@ -309,6 +309,16 @@
 	close(0);
 	close(1);
 
+	/*
+	 * fix: displaying "Warning: Cannot open file hoge.c; Success"
+	 * http://www.geocrawler.com/mail/msg.php3?msg_id=6897861&list=145
+	*/
+    if (open("/dev/null", O_RDONLY) < 0 ||
+    	open("/dev/null", O_WRONLY) < 0) {
+    	perror("/dev/null");
+    	exit(1);
+    }
+
 #ifdef _POSIX_SOURCE
 	fcntl(master, F_SETFL, O_NONBLOCK);
 #else