flags.h (flag_short_enums): Update comment.

	* flags.h (flag_short_enums): Update comment.
	* opts.c (decode_options): Set flag_short_enums to 2.
	* toplev.c (flag_short_enums): Update comment.
	(process_options): Call default_short_enums target hook.

From-SVN: r81704

gcc/ChangeLog

+2004-05-11  Paul Brook  <paul@codesourcery.com>
+
+	* flags.h (flag_short_enums): Update comment.
+	* opts.c (decode_options): Set flag_short_enums to 2.
+	* toplev.c (flag_short_enums): Update comment.
+	(process_options): Call default_short_enums target hook.
+
 2004-05-11  Andrew Pinski  <pinskia@gcc.gnu.org>
 
 	PR target/14063

gcc/flags.h

@@ -244,7 +244,8 @@ extern int flag_print_asm_name;
 
 extern int flag_signed_char;
 
-/* Nonzero means give an enum type only as many bytes as it needs.  */
+/* Nonzero means give an enum type only as many bytes as it needs.  A value
+   of 2 means it has not yet been initialized.  */
 
 extern int flag_short_enums;
 

gcc/opts.c

@@ -604,8 +604,9 @@ decode_options (unsigned int argc, const char **argv)
 
   /* Initialize whether `char' is signed.  */
   flag_signed_char = DEFAULT_SIGNED_CHAR;
-  /* Initialize how much space enums occupy, by default.  */
-  flag_short_enums = targetm.default_short_enums ();
+  /* Set this to a special "uninitialized" value.  The actual default is set
+     after target options have been processed.  */
+  flag_short_enums = 2;
 
   /* Initialize target_flags before OPTIMIZATION_OPTIONS so the latter can
      modify it.  */

gcc/toplev.c

@@ -314,7 +314,8 @@ unsigned local_tick;
 
 int flag_signed_char;
 
-/* Nonzero means give an enum type only as many bytes as it needs.  */
+/* Nonzero means give an enum type only as many bytes as it needs.  A value
+   of 2 means it has not yet been initialized.  */
 
 int flag_short_enums;
 
@@ -2232,6 +2233,9 @@ process_options (void)
   OVERRIDE_OPTIONS;
 #endif
 
+  if (flag_short_enums == 2)
+    flag_short_enums = targetm.default_short_enums ();
+
   /* Set aux_base_name if not already set.  */
   if (aux_base_name)
     ;