Build fails on some architectures: ld: error: undefined symbol: roundevenf

[yurivict]

Build fails on i386, armv7, powerpc64le architectures:

ld: error: undefined symbol: roundevenf
>>> referenced by CSProfile.cpp
>>>               CSProfile.cpp.o:(float* CSProfile::computeProfile<2>(unsigned char*, int, float*, float*, float, float, float)) in archive lib/mmseqs/src/libmmseqs-framework.a
>>> referenced by CSProfile.cpp
>>>               CSProfile.cpp.o:(float* CSProfile::computeProfile<2>(unsigned char*, int, float*, float*, float, float, float)) in archive lib/mmseqs/src/libmmseqs-framework.a
>>> referenced by CSProfile.cpp
>>>               CSProfile.cpp.o:(float* CSProfile::computeProfile<2>(unsigned char*, int, float*, float*, float, float, float)) in archive lib/mmseqs/src/libmmseqs-framework.a
>>> referenced 13 more times
c++: error: linker command failed with exit code 1 (use -v to see invocation)

Version: 6
clang-16
FreeBSD 14.0

[milot-mirdita]

32-bit platforms are not supported and produce wrong results. ppc64le should work, but that looks like some missing linked library?

[yurivict]

The roundevenf symbol seems to be related to the bundled simde library.
It is supposedly a compiler built-in function.

[milot-mirdita]

If not a built in then it uses the libm version. I see that glibc added it only some years ago. Maybe the BSD libc doesn’t have roundf implemented? We might also not explicitly link to libm, though I thought I fixed that issue a while ago.

[yurivict]

roundf is present in the FreeBSD's libm, but the problem is in a different function roundevenf.
roundevenf isn't called directly, only through simde.

[pkubaj]

@yurivict
Are you sure it fails on powerpc64 as well? Here's my build log:
metaeuk-6_2.log

@milot-mirdita
This bug raport is about ppc64, not ppc64le.

[yurivict]

The failures are on powerpc64le.

[yurivict]

Oh, I am very sorry!

powerpc64le has a different error and it is a clang crash.
I'll report it to the FreeBSD's toolchain support.

[milot-mirdita]

ppc64 (big-endian) should also not work, only a very limited number of modules are big endian compatible. Metaeuk definitely uses modules that don't work (correctly) on big-endian.

[milot-mirdita]

Just out of curiosity, where is the compiler crash?

[yurivict]

Here is the log.

[milot-mirdita]

Attributes 'zeroext and signext' are incompatible!
ptr @omp_get_proc_bind
fatal error: error in backend: Broken module found, compilation aborted!

this suggests an issue with libomp/openmp.

The proc bind call is not really necessary, it’s just there to find out if we are in a somewhat common performance failure case and warn about it.

[pkubaj]

That looks like llvm/llvm-project#63807