re PR fortran/24176 (gfortran segfaults on empty source)

2005-10-05  Richard Guenther  <rguenther@suse.de>

	PR fortran/24176
	* parse.c (gfc_parse_file): Exit early for empty files.

	* gfortran.fortran-torture/compile/empty.f90: New testcase.

From-SVN: r104984

gcc/fortran/ChangeLog

@@ -1,3 +1,8 @@
+2005-10-05  Richard Guenther  <rguenther@suse.de>
+
+	PR fortran/24176
+	* parse.c (gfc_parse_file): Exit early for empty files.
+
 2005-10-03  Steve Ellcey  <sje@cup.hp.com>
 
 	* fortran/trans-types.c (gfc_init_kinds): Only pass float, double,

gcc/fortran/parse.c

@@ -2560,6 +2560,10 @@ gfc_parse_file (void)
 
   seen_program = 0;
 
+  /* Exit early for empty files.  */
+  if (gfc_at_eof ())
+    goto done;
+
 loop:
   gfc_init_2 ();
   st = next_statement ();

gcc/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2005-10-05  Richard Guenther  <rguenther@suse.de>
+
+	PR fortran/24176
+	* gfortran.fortran-torture/compile/empty.f90: New testcase.
+
 2005-10-05  Nathan Sidwell  <nathan@codesourcery.com>
 
 	PR c++/23513