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Re: [PATCH, Modula-2 (C/C++/D/F/Go/Jit)] (Register spec fn) (v2)

On 10.07.19 22:07, Gaius Mulley wrote:
> Matthias Klose <> writes:
>> On 09.07.19 23:30, Matthias Klose wrote:
>>> On 09.07.19 21:48, Gaius Mulley wrote:
>>>> Matthias Klose <> writes:
>>>>>>  - libpth.{a,so} is installed in the system libdir, which
>>>>>>    conflicts with the installation of the libpth packages
>>>>>>    on most distros.
>>>>> found out that a system provided libpth can be used.  Otoh if you build the
>>>>> in-tree libpth, it shouldn't be installed, but built as a convenience library,
>>>>> like libgo using libffi, or libgphobos using zlib.
>>>> Hi Matthias,
>>>> as far as I know Redhat doesn't support libpth-dev - therefore it was
>>>> decided to include libpth in the gm2 tree and autodetect build/install
>>>> it as necessary.
>>> That's ok, but then please don't install it as a system library.  that's what
>>> convenience libraries are for (a libpth.a built with -fPIC, which you can link
>>> against).
>> I still think installing libpth is wrong, however currently all multilib
>> variants install into $libdir, and not into the system multilib dir, e.g. lib64,
>> lib32, ...  So the last multilib wins, and you end up with the wrong arch in
>> your $libdir.
> Hi Matthias,
> ah thanks for the explanation.  The multilib build system is still new
> to me.  So regarding the libpth issue, what happens if the native os
> does not provide libpth?  From your experience with building multilib
> and shared library packages on multiple platforms - what is the best
> solution :-)

I don't know about a best solution, but I contributed changes to
DRUNTIME_LIBRARIES_ZLIB in libphobos/m4/druntime/libraries.m4 and
gcc/doc/install.texi (--with-target-system-zlib).

Or you look at libffi/libgo, with libgo always linking the convenience libffi


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