Set INTERFACE_LINK_DIRECTORIES on caffe2::mkl (#89359)
This ensures that subsequent link commands involving mkl libraries
know where to find the libraries if they are in a non-standard
location (which is the case if you installed mkl via conda, which
is what our standard instructions recommend.)
This is kind of a hack, because the MKL libraries are not actually
guaranteed to be in $MKL_ROOT/lib (they are for the conda install
though). The real fix is to properly use the MKL targets from
FindMKL.cmake but thats its own can of fish. See
https://github.com/pytorch/pytorch/issues/73008
This fixes https://github.com/pytorch/audio/issues/2784
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/89359
Approved by: https://github.com/soumith
