Build caffe fails on Ubuntu 16.04 (‘memcpy’ was not declared in this scope)

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.

So, Open the Makefile and changing the line

NVCCFLAGS += -ccbin=$(CXX) -Xcompiler -fPIC $(COMMON_FLAGS)

into

NVCCFLAGS += -D_FORCE_INLINES -ccbin=$(CXX) -Xcompiler -fPIC $(COMMON_FLAGS)

For me this was on line 406