[musl] Build failure on 64 bit machine for 32 bit target

[musl] Build failure on 64 bit machine for 32 bit target

[Ritvik Tanksalkar]

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Hi,

I am not subscribed so I would like to get CC'd for the reply. I've been
trying to get musl build for 32 bit targets on a 64 bit linux machine. For
this, I'm doing the following on musl-1.2.5 -

CC=gcc CFLAGS="-m32" LDFLAGS="-m32" ./configure --host=i686-linux-gnu

and then running "make" results in multiple definition errors while
linking. The following output has been redacted for the sake of brevity.

/usr/bin/ld: obj/compat/time32/__xstat.lo: in function `__fxstat':
__xstat.c:(.text.__fxstat+0x0): multiple definition of `__fxstat';
obj/src/stat/__xstat.lo:__xstat.c:(.text.__fxstat+0x0): first defined here
/usr/bin/ld: obj/compat/time32/__xstat.lo: in function `__fxstatat':
__xstat.c:(.text.__fxstatat+0x0): multiple definition of `__fxstatat';
obj/src/stat/__xstat.lo:__xstat.c:(.text.__fxstatat+0x0): first defined here
/usr/bin/ld: obj/compat/time32/__xstat.lo: in function `__lxstat':
__xstat.c:(.text.__lxstat+0x0): multiple definition of `__lxstat';
obj/src/stat/__xstat.lo:__xstat.c:(.text.__lxstat+0x0): first defined here
/usr/bin/ld: obj/compat/time32/__xstat.lo: in function `__xstat':
__xstat.c:(.text.__xstat+0x0): multiple definition of `__xstat';
obj/src/stat/__xstat.lo:__xstat.c:(.text.__xstat+0x0): first defined here

I'm certain that I'm missing out on something trivial here. Any insights
into this would be appreciated.

Warm Regards,
Ritvik

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Re: [musl] Build failure on 64 bit machine for 32 bit target

[Markus Wichmann]

Am Tue, Aug 06, 2024 at 12:00:36PM -0400 schrieb Ritvik Tanksalkar:
> CC=gcc CFLAGS="-m32" LDFLAGS="-m32" ./configure --host=i686-linux-gnu
>

That doesn't work. Try

CC="gcc -m32" ./configure --target=i686 AR=ar RANLIB=ranlib

Your way does not add "-m32" for configure tests. Unfortunately, this
way I am still only able to generate the static library, because the
shared one uses the wrong libgcc. Because -m32 does not change the
output of "gcc -print-libgcc-file-name". No clue how you are supposed to
do this, short of using a real cross compiler.

Ciao,
Markus