bug#32087: gcc -m32 can't find stubs-32.h

bug#32087: gcc -m32 can't find stubs-32.h

[David Larsson]

I tried to run gcc to compile a simple c program which fails:

gcc -m32 -o m32test m32test.c
In file included from /home/user1/.guix-profile/include/features.h:388,
                  from /home/user1/.guix-profile/include/stdio.h:27,
                  from m32test.c:2:
/home/user1/.guix-profile/include/gnu/stubs.h:7:11: fatal error: 
gnu/stubs-32.h: No such file or directory
  # include <gnu/stubs-32.h>
            ^~~~~~~~~~~~~~~~
compilation terminated.

with -m64 it compiles correctly. In ~/.guix-profile/include/gnu/ I have 
the files:

libc-version.h
lib-names-64.h
lib-names.h
stubs-64.h
stubs.h

Expected result is that it silently works.

--
Best Regards
David L

bug#32087: gcc -m32 can't find stubs-32.h

[Ricardo Wurmus]

David Larsson <david.larsson@selfhosted.xyz> writes:

> I tried to run gcc to compile a simple c program which fails:

Are you using the “gcc-toolchain” package?

-- 
Ricardo

bug#32087: gcc -m32 can't find stubs-32.h

[Clément Lassieur]

Ricardo Wurmus <rekado@elephly.net> writes:

> David Larsson <david.larsson@selfhosted.xyz> writes:
>
>> I tried to run gcc to compile a simple c program which fails:
>
> Are you using the “gcc-toolchain” package?

I reproduce that bug with gcc-toolchain.

bug#32087: gcc -m32 can't find stubs-32.h

[Ricardo Wurmus]

Clément Lassieur <clement@lassieur.org> writes:

> Ricardo Wurmus <rekado@elephly.net> writes:
>
>> David Larsson <david.larsson@selfhosted.xyz> writes:
>>
>>> I tried to run gcc to compile a simple c program which fails:
>>
>> Are you using the “gcc-toolchain” package?
>
> I reproduce that bug with gcc-toolchain.

If you’re trying to compile for i686, should you not be using the i686
variant of gcc-toolchain?  You can build it with

    guix build --system=i686-linux gcc-toolchain

(I don’t really know much about this, but we don’t build GCC with
multilib support.)

-- 
Ricardo

bug#32087: gcc -m32 can't find stubs-32.h

[Clément Lassieur]

Ricardo Wurmus <rekado@elephly.net> writes:

> Clément Lassieur <clement@lassieur.org> writes:
>
>> Ricardo Wurmus <rekado@elephly.net> writes:
>>
>>> David Larsson <david.larsson@selfhosted.xyz> writes:
>>>
>>>> I tried to run gcc to compile a simple c program which fails:
>>>
>>> Are you using the “gcc-toolchain” package?
>>
>> I reproduce that bug with gcc-toolchain.
>
> If you’re trying to compile for i686, should you not be using the i686
> variant of gcc-toolchain?  You can build it with
>
>     guix build --system=i686-linux gcc-toolchain

How would you install that variant?

> (I don’t really know much about this, but we don’t build GCC with
> multilib support.)

This option is in the gcc manual that we package, so I think it should
be supported.

bug#32087: gcc -m32 can't find stubs-32.h

[Ludovic Courtès]

Hello,

Clément Lassieur <clement@lassieur.org> skribis:

> Ricardo Wurmus <rekado@elephly.net> writes:
>
>> Clément Lassieur <clement@lassieur.org> writes:
>>
>>> Ricardo Wurmus <rekado@elephly.net> writes:
>>>
>>>> David Larsson <david.larsson@selfhosted.xyz> writes:
>>>>
>>>>> I tried to run gcc to compile a simple c program which fails:
>>>>
>>>> Are you using the “gcc-toolchain” package?
>>>
>>> I reproduce that bug with gcc-toolchain.
>>
>> If you’re trying to compile for i686, should you not be using the i686
>> variant of gcc-toolchain?  You can build it with
>>
>>     guix build --system=i686-linux gcc-toolchain
>
> How would you install that variant?

Currently you’d have to do:

  guix package -i `guix build -s i686-linux gcc-toolchain`

which is not ideal.

>> (I don’t really know much about this, but we don’t build GCC with
>> multilib support.)
>
> This option is in the gcc manual that we package, so I think it should
> be supported.

Yeah.  The problem is that currently we don’t build glibc with multilib
support.  Something for the next ‘core-updates’ cycle if you feel like
working on it!  :-)

Ludo’.

bug#32087: gcc -m32 can't find stubs-32.h

[Clément Lassieur]

Ludovic Courtès <ludo@gnu.org> writes:

> Yeah.  The problem is that currently we don’t build glibc with multilib
> support.  Something for the next ‘core-updates’ cycle if you feel like
> working on it!  :-)

I can't work on it and I also don't need it at all.  I'm just confirming
what David says :-)