Un-break the x86 world following sparc byte-extend (Word8Rep) fix. Duh.
primRepToSize CharRep = IF_ARCH_alpha( L, IF_ARCH_i386( L, IF_ARCH_sparc( W ,)))
primRepToSize Int8Rep = IF_ARCH_alpha( B, IF_ARCH_i386( B, IF_ARCH_sparc( B ,)))
primRepToSize CharRep = IF_ARCH_alpha( L, IF_ARCH_i386( L, IF_ARCH_sparc( W ,)))
primRepToSize Int8Rep = IF_ARCH_alpha( B, IF_ARCH_i386( B, IF_ARCH_sparc( B ,)))
-primRepToSize Word8Rep = IF_ARCH_alpha( B, IF_ARCH_i386( B, IF_ARCH_sparc( BU,)))
+primRepToSize Word8Rep = IF_ARCH_alpha( BU, IF_ARCH_i386( BU, IF_ARCH_sparc( BU,)))
primRepToSize IntRep = IF_ARCH_alpha( Q, IF_ARCH_i386( L, IF_ARCH_sparc( W ,)))
primRepToSize WordRep = IF_ARCH_alpha( Q, IF_ARCH_i386( L, IF_ARCH_sparc( W ,)))
primRepToSize IntRep = IF_ARCH_alpha( Q, IF_ARCH_i386( L, IF_ARCH_sparc( W ,)))
primRepToSize WordRep = IF_ARCH_alpha( Q, IF_ARCH_i386( L, IF_ARCH_sparc( W ,)))