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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
--- gcc-4.2.0/gcc/config.gcc
+++ gcc-4.2.0/gcc/config.gcc
@@ -2092,7 +2092,7 @@
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 ;;
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