bug#23348: [m4/libtool.m4] linker error for powerpc64le-unknown-linux-gnu

[Sam James]

Mike Frysinger <vapier@gentoo.org> writes:

> [[PGP Signed Part:Undecided]]
> On 24 Apr 2016 00:46, Leno Hou wrote:
>>    3) But when I set CHOST="powerpc64le-unkown-linux-gnu" in Gentoo and
>> execute aclocal, automake, libtoolize --copy --force, autoconf. When I
>> glance in the latest m4/libtool.m4 :
>
> i took another look at this patch.  it isn't making sense to me, and your
> commit message doesn't have an explanation as to why you need it.  the only
> thing you've written is "i looked at the file, and it looks incorrect".

you liked it before! https://bugs.gentoo.org/581314 ;)

>
> do you have a build failure/log somewhere to share ?
>
>> if AC_TRY_EVAL(ac_compile); then
>>    case `/usr/bin/file conftest.o` in
>>      *32-bit*)
>>        case $host in
>> ...
>>          powerpc64le-*linux*)
>>            LD="${LD-ld} -m elf32lppclinux"
>>            ;;
>>          powerpc64-*linux*)
>>            LD="${LD-ld} -m elf32ppclinux"
>>            ;;
>> ...
>>      *64-bit*)
>>        case $host in
>> ...
>>          powerpcle-*linux*)
>>            LD="${LD-ld} -m elf64lppc"
>>            ;;
>>          powerpc-*linux*)
>>            LD="${LD-ld} -m elf64ppc"
>>            ;;
>> ...
>> 
>> seems linked to $LD='$LD-ld -m elf64ppc' and failed to compile packages.
>
> this code is really for multilib situations.  it's only needed when you want
> to compile for a diff ABI than the toolchain is defaulting to.
>
> so if --host=powerpc64le-linux-gnu, it should produce 64-bit binaries, and
> libtool doesn't have to do anything.  that's why powerpc64 isn't listed in
> the 64-bit section.
>
> adding it here would only matter if your powerpc64le-linux-gnu is producing
> 32-bit binaries by default, and that doesn't make sense.  and as you can
> see from the arch list in this section, no other target does this.
> -mike
>
> [[End of PGP Signed Part]]