The only officially supported toolchain is \texttt{XCODE5}. Other toolchains
might work, but are neither supported, nor recommended. Contribution of clean
patches is welcome. Please do follow
\href{https://github.com/tianocore/tianocore.github.io/wiki/Code-Style-C}{EDK II C Codestyle}.
Required external package dependencies include \href{https://github.com/acidanthera/OcSupportPkg}{EfiPkg} and \href{https://github.com/acidanthera/OcSupportPkg}{OcSupportPkg}.
To compile with \texttt{XCODE5}, besides \href{https://developer.apple.com/xcode}{Xcode},
one should also install \href{https://www.nasm.us}{NASM} and
\href{https://github.com/acidanthera/AppleSupportPkg/blob/master/External/mtoc-mac64.zip}{MTOC}. Example command sequence may look as follows: