When do static build, the libfoxi_loader.a can be generated but won't be installed to CMAKE_INSTALL_LIBDIR

[gemfield]

This issue is related with pytorch/pytorch#53825

When build pytorch static library, as a third party repo of pytorch, the libfoxi_loader.a can be generated, but missing in CMAKE_INSTALL_LIBDIR.

After build with command:

cmake --build . --target install -- "-j8"

In the build dir, we have:

root@build_libtorch:/gemfield/github/build# find . -name "*.a" | grep foxi
./lib/libfoxi_loader.a
root@build_libtorch:/gemfield/github/build# 

In the install dir, we have:

root@build_libtorch:/gemfield/github/libtorch_cuda/lib# find . -name "*.a" | wc -l
25
root@build_libtorch:/gemfield/github/libtorch_cuda/lib# find . -name "*.a" | grep foxi
root@build_libtorch:/gemfield/github/libtorch_cuda/lib#

[gemfield]

@houseroad Could you have a look at this issue?