Index: ChangeLog
===================================================================
RCS file: /cvs/gnome/gnumeric/ChangeLog,v
retrieving revision 1.3727.2.1
diff -u -I'$Id.*$' -p -r1.3727.2.1 ChangeLog
--- ChangeLog	20 Jan 2005 06:05:54 -0000	1.3727.2.1
+++ ChangeLog	22 Jan 2005 08:20:46 -0000
@@ -1,3 +1,9 @@
+2005-01-22  J.H.M. Dassen (Ray) <jdassen debian org>
+
+	http://bugs.debian.org/291265
+	* src/file.c (gnm_file_saver_save) : Produce an error when no proper
+	UTF-8 filename was produced.
+
 2005-01-20  Jody Goldberg <jody gnome org>
 
 	* configure.in : post BRANCHING bump
Index: src/file.c
===================================================================
RCS file: /cvs/gnome/gnumeric/src/file.c,v
retrieving revision 1.148
diff -u -I'$Id.*$' -p -r1.148 file.c
--- src/file.c	16 Nov 2004 04:23:34 -0000	1.148
+++ src/file.c	22 Jan 2005 08:20:46 -0000
@@ -512,8 +512,15 @@ gnm_file_saver_save (GnmFileSaver const 
 
 	if (GSF_IS_OUTPUT_STDIO (output)) {
 		file_name = (char *) gsf_output_name (output);
-		g_return_if_fail (file_name != NULL);
-		
+		if (file_name == NULL) {
+			ErrorInfo *save_error;
+
+			save_error = error_info_new_str(
+				_("Not a valid UTF-8 filename."));
+			gnumeric_io_error_info_set (io_context, save_error);
+			return;
+		}
+
 		if (!fs->overwrite_files &&
 		    g_file_test ((file_name), G_FILE_TEST_EXISTS)) {
 			ErrorInfo *save_error;