You can install many of the GNU development tools on MINIX by using pkgin or pkgsrc.
They have more packages than mentioned below.
GCC is available in both source code (pkgsrc) and ready-to-install (pkgin) forms.
The supporting tools, Binutils, are already installed since they are required by the system compiler (clang/llvm).
You can also install the following tools. They are useful if you plan on building third-party programs originating from the Linux world: