Compiling for PMFuzz using clang

I'm trying to compile a program for pmfuzz using clang, as the readme says ` you'd need to use PMFuzz's AFL++ version of gcc/clang`. However, it appears that the included AFL++ version of `afl-clang` simply links to the `afl-gcc` binary. Is the `afl-clang-fast` binary modified for PMFuzz, or is using `afl-gcc` necessary?