winchip3d can use same -march as winchip2

diff -urpN --exclude-from=/home/davej/.exclude bk-linus/arch/i386/Makefile linux-2.5/arch/i386/Makefile
@@ -38,12 +38,14 @@ cflags-$(CONFIG_MPENTIUMII)	+= $(call ch
 cflags-$(CONFIG_MPENTIUMIII)	+= $(call check_gcc,-march=pentium3,-march=i686)
 cflags-$(CONFIG_MPENTIUM4)	+= $(call check_gcc,-march=pentium4,-march=i686)
 cflags-$(CONFIG_MK6)		+= $(call check_gcc,-march=k6,-march=i586)
+# Please note, that patches that add -march=athlon-xp and friends are pointless.
+# They make zero difference whatsosever to performance at this time.
 cflags-$(CONFIG_MK7)		+= $(call check_gcc,-march=athlon,-march=i686 $(align)-functions=4)
 cflags-$(CONFIG_MK8)		+= $(call check_gcc,-march=k8,$(call check_gcc,-march=athlon,-march=i686 $(align)-functions=4))
 cflags-$(CONFIG_MCRUSOE)	+= -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
 cflags-$(CONFIG_MWINCHIPC6)	+= $(call check_gcc,-march=winchip-c6,-march=i586)
 cflags-$(CONFIG_MWINCHIP2)	+= $(call check_gcc,-march=winchip2,-march=i586)
-cflags-$(CONFIG_MWINCHIP3D)	+= -march=i586
+cflags-$(CONFIG_MWINCHIP3D)	+= $(call check_gcc,-march=winchip2,-march=i586)
 cflags-$(CONFIG_MCYRIXIII)	+= $(call check_gcc,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
 cflags-$(CONFIG_MVIAC3_2)	+= $(call check_gcc,-march=c3-2,-march=i686)