tradcpp.c (output_line_command): Mark system headers as such in `line' commands.

	* tradcpp.c (output_line_command): Mark system headers as such in
	`line' commands.

From-SVN: r37616

gcc/ChangeLog

+2000-11-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* tradcpp.c (output_line_command): Mark system headers as such in
+	`line' commands.
+
 2000-11-21  Jakub Jelinek  <jakub@redhat.com>
 
 	* configure.in (HAVE_AS_DWARF2_DEBUG_LINE): Sparc has .file/.loc

gcc/tradcpp.c

@@ -3535,6 +3535,8 @@ output_line_command (ip, op, conditional, file_change)
   sprintf (line_cmd_buf, "# %d \"%s\"", ip->lineno, ip->fname);
   if (file_change != same_file)
     strcat (line_cmd_buf, file_change == enter_file ? " 1" : " 2");
+  if (system_include_depth > 0)
+    strcat (line_cmd_buf, " 3");
   len = strlen (line_cmd_buf);
   line_cmd_buf[len++] = '\n';
   check_expand (op, len + 1);