While following the instructions for macos (i have sierra) in INSTALL.md, agbcc/build.sh failed, complaining it couldn't find the /opt/devkitpro/devkitARM/base_tools file. After a bit of research, i found out this file is in the devkitarm-rules package (in the devkitpro repos for pacman). Since installing this package fixes the problem, i added some troubleshooting instructions for it in INSTALL.md.