re PR preprocessor/11361 (ICE (segfault) in c-lex.c with one-liner)

	* line-map.c (add_line_map):  Handle invalid LEAVE request.
	Fixes PR preprocessor/11361.

From-SVN: r69688

gcc/ChangeLog

 2003-07-22  Per Bothner  <pbothner@apple.com>
 
+	* line-map.c (add_line_map):  Handle invalid LEAVE request.
+	Fixes PR preprocessor/11361.
+
+2003-07-22  Per Bothner  <pbothner@apple.com>
+
 	* diagnostic.c.(diagnostic_report_current_module):  Update to match
 	2003-06-05 changes to push_srcloc and pop_srcloc.
 

gcc/line-map.c

@@ -96,9 +96,15 @@ linemap_add (struct line_maps *set, enum lc_reason reason,
 
       if (MAIN_FILE_P (map - 1))
 	{
-	  set->depth--;
-	  set->used--;
-	  return NULL;
+	  if (to_file == NULL)
+	    {
+	      set->depth--;
+	      set->used--;
+	      return NULL;
+	    }
+	  error = true;
+          reason = LC_RENAME;
+          from = map - 1;
 	}
       else
 	{