So I am currently installing Caffe and I'm already in this part:
No, this does not help the Ubuntu 16.04 for now. You could try to pass an argument (CXX_FLAGS) to the compiler -D_FORCE_INLINES by editing the CMAKE files (for example: set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FORCE_INLINES")) or makefiles. The procedure is not specified. This should work, or you must wait for an updated Cuda Toolkit sources to compile with the associated software in Ubuntu 16.04 such as Caffe, Torch and Theano.
I'm following this guide: https://github.com/intel/caffe/wiki/Ubuntu-16.04-or-15.10-Installation-Guide
I don't exactly know what this means. Can someone please explain this to me in detailed steps? Thank you!