Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/53_all_gcc4-superh-default-multilib.patch

 The gcc-3.x toolchains would contain all the targets by default.  With gcc-4,

 you have to actually list out the multilibs you want or you will end up with

 just one when using targets like 'sh4-linux-gnu'.

 The resulting toolchain can't even build a kernel as the kernel needs to build

 with the nofpu flag to be sure that no fpu ops are generated.

 Here we restore the gcc-3.x behavior; the additional overhead of building all

 of these multilibs by default is negligible.

 http://bugs.gentoo.org/140205

 diff -durN gcc-4.3.1.orig/gcc/config.gcc gcc-4.3.1/gcc/config.gcc

 --- gcc-4.3.1.orig/gcc/config.gcc	2008-05-21 10:54:15.000000000 +0200

 +++ gcc-4.3.1/gcc/config.gcc	2008-06-10 14:58:06.000000000 +0200

 @@ -2278,7 +2278,7 @@

  	if test x${sh_multilibs} = x ; then

  		case ${target} in

  		sh64-superh-linux* | \

 -		sh[1234]*)	sh_multilibs=${sh_cpu_target} ;;

 +		sh[1234]*)	sh_multilibs=`cd ${srcdir}/config/sh ; echo t-mlib-sh[1-4]* | sed 's:t-mlib-sh:,m:g;s: ::g'` ;;

  		sh64* | sh5*)	sh_multilibs=m5-32media,m5-32media-nofpu,m5-compact,m5-compact-nofpu,m5-64media,m5-64media-nofpu ;;

  		sh-superh-*)	sh_multilibs=m4,m4-single,m4-single-only,m4-nofpu ;;

  		sh*-*-linux*)	sh_multilibs=m1,m3e,m4 ;;