How do I do it. ("It" referring to the title). I'm trying to implement the boost c++ libraries. I'm also using citro3d but since it came with the instructions of 'make install' and I noticed it put a file in the devkitpro folder (which is already set up to be used by the makefile). Thing is I didn't make the 'makefile' so I don't know how it works, it's just the basic makefile 3ds homebrew template I found in one of the examples. So basically how do I add other directories. Here are the lines I'm assuming need to be edited: Code: include $(DEVKITARM)/3ds_rules INCLUDES := include LIBDIRS := $(CTRULIB) but I have no idea how to edit them to also have the other directories I need. EDIT: Sorry for the double post, don't know how that happened.