re PR c/28800 (warning "ISO C forbids an empty source file" could be improved)

gcc/:
PR c/28800
* c-parser.c (c_parser_translation_unit): Warn for empty
translation unit, not empty source file.

gcc/testsuite/:
PR c/28800
* gcc.dg/empty-source-2.c: Adjust for warning message.
* gcc.dg/empty-source-3.c: Likewise.
* gcc.dg/pack-test-2.c: Adjust comment.
* gcc.dg/pragma-ep-2.c: Likewise.
* gcc.dg/pragma-re-2.c: Likewise.
* gcc.dg/va-arg-2.c: Likewise.

From-SVN: r132690

gcc/ChangeLog

+2008-02-26  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+	PR c/28800
+	* c-parser.c (c_parser_translation_unit): Warn for empty
+	translation unit, not empty source file.
+
 2008-02-26  Paul Brook  <paul@codesourcery.com>
 
 	* config/arm/arm.c (thumb_set_frame_pointer): Ensure SP is first

gcc/c-parser.c

@@ -1069,7 +1069,7 @@ c_parser_translation_unit (c_parser *parser)
   if (c_parser_next_token_is (parser, CPP_EOF))
     {
       if (pedantic)
-	pedwarn ("%HISO C forbids an empty source file",
+	pedwarn ("%HISO C forbids an empty translation unit",
 		 &c_parser_peek_token (parser)->location);
     }
   else

gcc/testsuite/ChangeLog

+2008-02-26  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+	PR c/28800
+	* gcc.dg/empty-source-2.c: Adjust for warning message.
+	* gcc.dg/empty-source-3.c: Likewise.
+	* gcc.dg/pack-test-2.c: Adjust comment.
+	* gcc.dg/pragma-ep-2.c: Likewise.
+	* gcc.dg/pragma-re-2.c: Likewise.
+	* gcc.dg/va-arg-2.c: Likewise.
+
 2008-02-26  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/35033

gcc/testsuite/gcc.dg/empty-source-2.c

@@ -3,4 +3,4 @@
 /* { dg-do compile } */
 /* { dg-options "-pedantic" } */
 
-/* { dg-warning "ISO C forbids an empty source file" "empty" { target *-*-* } 6 } */
+/* { dg-warning "ISO C forbids an empty translation unit" "empty" { target *-*-* } 6 } */

gcc/testsuite/gcc.dg/empty-source-3.c

@@ -4,4 +4,4 @@
 /* { dg-do compile } */
 /* { dg-options "-pedantic-errors" } */
 
-/* { dg-error "ISO C forbids an empty source file" "empty" { target *-*-* } 7 } */
+/* { dg-error "ISO C forbids an empty translation unit" "empty" { target *-*-* } 7 } */

gcc/testsuite/gcc.dg/pack-test-2.c

@@ -22,4 +22,4 @@
 
 #pragma pack(push, foo, 3)      /* { dg-warning "small power of two" } */
 
-extern int blah;	/* prevent "ISO C forbids an empty source file" */
+extern int blah;	/* prevent "ISO C forbids an empty translation unit" */

gcc/testsuite/gcc.dg/pragma-ep-2.c

@@ -4,4 +4,4 @@
 #pragma extern_prefix foo		/* { dg-warning "malformed" } */
 #pragma extern_prefix "foo" 1		/* { dg-warning "junk" } */
 
-int bar; /* silence `ISO C forbids an empty source file' warning */
+int bar; /* silence `ISO C forbids an empty translation unit' warning */

gcc/testsuite/gcc.dg/pragma-re-2.c

@@ -5,4 +5,4 @@
 #pragma redefine_extname foo 1		/* { dg-warning "malformed" } */
 #pragma redefine_extname foo bar 2	/* { dg-warning "junk" } */
 
-int bar; /* silence `ISO C forbids an empty source file' warning */
+int bar; /* silence `ISO C forbids an empty translation unit' warning */

gcc/testsuite/gcc.dg/va-arg-2.c

@@ -9,4 +9,4 @@
 /* { dg-error "no longer implements" "#error 1" { target *-*-* } 4 } */
 /* { dg-error "Revise your code" "#error 2" { target *-*-* } 5 } */
 
-int x;  /* prevent empty-source-file warning */
+int x;  /* prevent empty-translation-unit warning */