Segfault in macOS in the presence of other OpenMP dependent packages

[kyamagu]

Describe the bug
faiss may crash when there is another imported package that depends on libomp.

To Reproduce
Import a package that depends on OpenMP on macOS, then import faiss-cpu package. Use faiss as usual.

Expected behavior
Should not segfault.

Desktop (please complete the following information):

• OS: macOS
• Architecture: arm64
• Python: any
• Version: v1.7.3

Additional context
facebookresearch/faiss#2463
benfred/implicit#613 (comment)
dmlc/xgboost#7039 (comment)
https://bugs.llvm.org/show_bug.cgi?id=50579

[kyamagu]

pytorch/pytorch#44282

[kyamagu]

A dangerous workaround is to set the following environment variable.

export KMP_DUPLICATE_LIB_OK=TRUE

[kyamagu]

https://pypackaging-native.github.io/key-issues/native-dependencies/blas_openmp/