vms-c.c (vms_pragma_nomember_alignment): Handle 'byte' alignment.

2012-04-03  Tristan Gingold  <gingold@adacore.com>

	* config/vms/vms-c.c (vms_pragma_nomember_alignment): Handle
	'byte' alignment.
	(vms_c_common_override_options): Allow parameterless variadic
	functions.

From-SVN: r186102

gcc/ChangeLog

+2012-04-03  Tristan Gingold  <gingold@adacore.com>
+
+	* config/vms/vms-c.c (vms_pragma_nomember_alignment): Handle
+	'byte' alignment.
+	(vms_c_common_override_options): Allow parameterless variadic
+	functions.
+
 2012-04-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/52835

gcc/config/vms/vms-c.c

@@ -120,7 +120,9 @@ vms_pragma_nomember_alignment (cpp_reader *pfile ATTRIBUTE_UNUSED)
       if (arg[0] == '_' && arg[1] == '_')
         arg += 2;
 
-      if (strcmp (arg, "word") == 0)
+      if (strcmp (arg, "byte") == 0)
+        maximum_field_alignment = 1 * BITS_PER_UNIT;
+      else if (strcmp (arg, "word") == 0)
         maximum_field_alignment = 2 * BITS_PER_UNIT;
       else if (strcmp (arg, "longword") == 0)
         maximum_field_alignment = 4 * BITS_PER_UNIT;
@@ -453,6 +455,9 @@ vms_c_register_includes (const char *sysroot,
 void
 vms_c_common_override_options (void)
 {
+  /* Allow variadic functions without parameters (as declared in starlet).  */
+  flag_allow_parameterless_variadic_functions = TRUE;
+
   /* Initialize c_default_pointer_mode.  */
   switch (flag_vms_pointer_size)
     {