Bug#716736: gcc hppa64

[Matthias Klose <doko@debian.org>]

Am 15.07.2013 03:26, schrieb John David Anglin:
> On 12-Jul-13, at 6:52 AM, Matthias Klose wrote:
> 
>> I'm not aware of any change in -6 which could have caused that.
> 
> It appears the change that exposed the bug was the installation of eglibc 2.17-7.
> 
> The stdc-predef.h header is now included automatically.  It includes
> <bits/predefs.h>.
> 
> The hppa64 header search starts from /usr/hppa64-linux-gnu/include which is
> linked to /usr/include.  There isn't multiarch support so the compiler doesn't find
> bits/predefs.h in /usr/include/hppa-linux-gnu.
> 
> There is no glibc port for hppa64 linux.
> 
> I think the problem was introduced by the following change to gcc:
> 
> 2012-10-23  Joseph Myers  <joseph@codesourcery.com>
> 
>         * config.gcc (*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu |
>         *-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu): Use
>         glibc-c.o in c_target_objs and cxx_target_objs.  Use t-glibc in
>         tmake_file.  Set target_has_targetcm.
>         (tilegx-*-linux*, tilepro-*-linux*): Append to c_target_objs and
>         cxx_target_objs rather than overriding previous value.
>         * config/glibc-c.c, config/t-glibc: New.
>         * doc/tm.texi.in (TARGET_C_PREINCLUDE): New @hook.
>         * doc/tm.texi: Regenerate.
>         * hooks.c (hook_constcharptr_void_null): New.
>         * hooks.h (hook_constcharptr_void_null): Declare.
> 
> It may be possible to disable this in config.gcc.

maybe. Or ship a symlink /usr/include/hppa64-linux-gnu -> hppa-linux-gnu. The
file just needs to be found, nothing else should use it.  However I didn't look
if the multiarch triplet for hppa64-linux-gnu is set, or correctly set.