Index: defaults/sparc64/Makefile.config
===================================================================
--- defaults/sparc64/Makefile.config	(revision 59e9398b3988971c8517c1583fced494647f87ba)
+++ defaults/sparc64/Makefile.config	(revision 26e7d6da331e8d35b5e83880a9740de5e9e4bd99)
@@ -53,7 +53,4 @@
 CONFIG_AP = y
 
-# Preserve A.OUT header in isofs.b
-CONFIG_AOUT_ISOFS_B = y
-
 # Load disk drivers on startup
 CONFIG_START_BD = n