This directory holds (after you download them):
- mpi/*.h (for 
mpi, Windows/Linux) - google/protobuf/*.h (For 
google protobuf, Windows Only) - cudnn.h (For 
cudnn, Windows Only) - cblas.h and relevent header files (For 
cblas, Windows/Linux) - getopt.h and unistd.h (For 
platform-releventheader files, Windows Only)