undef new AIX alignment macros

From-SVN: r11867

gcc/config/rs6000/sysv4.h

@@ -277,6 +277,8 @@ do {									\
 /* No data type wants to be aligned rounder than this.  */
 #undef	BIGGEST_ALIGNMENT
 #undef  BIGGEST_FIELD_ALIGNMENT
+#undef  ADJUST_FIELD_ALIGN
+#undef  ROUND_TYPE_ALIGN
 #define BIGGEST_ALIGNMENT 128
 
 /* Use ELF style section commands.  */

gcc/config/rs6000/win-nt.h

@@ -104,6 +104,9 @@ Boston, MA 02111-1307, USA.  */
 #undef	BIGGEST_FIELD_ALIGNMENT
 #define BIGGEST_FIELD_ALIGNMENT 64
 
+#undef  ADJUST_FIELD_ALIGN
+#undef  ROUND_TYPE_ALIGN
+
 #undef TARGET_VERSION
 #define TARGET_VERSION fprintf (stderr, " (PowerPC PE)");