scripts: always create lib32 and lib64 symlinks
Unconditionally create the lib32 -> lib/ and lib64 -> lib/ symlinks.
This is reportedly a fix to build a toolchain for a 32-bit target on
a 'pure' 64-bit host (eg. on Fedora FC12, host libs are in lib64/,
and there is no lib -> lib64 symlink, as we can see on other distors,
as Debian). As gcc only puts static host lib in lib64/ (along with
target files in subdirs), we can safely create the symlinks.
Also note that the symlinks are summarily removed at the end
of the build.
Signed-off-by: Anthony Foiani <anthony.foiani@gmail.com>
[Yann E. MORIN: fix a comment, rephrase the commit log]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/53_all_gcc4-superh-default-multilib.patch
2 The gcc-3.x toolchains would contain all the targets by default. With gcc-4,
3 you have to actually list out the multilibs you want or you will end up with
4 just one when using targets like 'sh4-linux-gnu'.
6 The resulting toolchain can't even build a kernel as the kernel needs to build
7 with the nofpu flag to be sure that no fpu ops are generated.
9 Here we restore the gcc-3.x behavior; the additional overhead of building all
10 of these multilibs by default is negligible.
12 http://bugs.gentoo.org/140205
14 diff -durN gcc-4.3.1.orig/gcc/config.gcc gcc-4.3.1/gcc/config.gcc
15 --- gcc-4.3.1.orig/gcc/config.gcc 2008-05-21 10:54:15.000000000 +0200
16 +++ gcc-4.3.1/gcc/config.gcc 2008-06-10 14:58:06.000000000 +0200
18 if test x${sh_multilibs} = x ; then
20 sh64-superh-linux* | \
21 - sh[1234]*) sh_multilibs=${sh_cpu_target} ;;
22 + sh[1234]*) sh_multilibs=`cd ${srcdir}/config/sh ; echo t-mlib-sh[1-4]* | sed 's:t-mlib-sh:,m:g;s: ::g'` ;;
23 sh64* | sh5*) sh_multilibs=m5-32media,m5-32media-nofpu,m5-compact,m5-compact-nofpu,m5-64media,m5-64media-nofpu ;;
24 sh-superh-*) sh_multilibs=m4,m4-single,m4-single-only,m4-nofpu ;;
25 sh*-*-linux*) sh_multilibs=m1,m3e,m4 ;;