complibs/cloog: create missing m4 dir
Because we now patch configure.in and configure, the Makefile quicks
in a re-build rule as the source files are now more recent than the
bundled generated files, and that fails because the m4 directory
is missing, although on some systems where aclocal is not installed,
the re-build rule does nothing (except a warning).
Always create tht directory.
Reported-by: Per Arnold Blaasmo <per-arnold.blaasmo@atmel.com>
[Also thanks to Thomas De Schampheleire <patrickdepinguin@gmail.com>
for some digging works on this issue]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.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 ;;