Even if they changed name in the sources, the name is found in the header of the source file.
Yes, code was used it but it hardly is the same lib anymore. Considering libmikmod's AND timidity++'s development has both stopped, there's very little change the upstreams "getting together" again. Code in this directory was modified by Paolo Bonzini <bonzini@gnu.org> starting from libmikmod 3.1.8 libmikmod was cleaned up, removing code that was needed by libmikmod's portability (MD_) layer and data that were needed by the player. The player itself now forms the core of TiMidity++'s mod.c file but is detached from libunimod which is nothing more a generic module->UNI converter. In addition, libmikmod's own portable file I/O routines were changed to rely on libarc's URL objects. The code should be compatible enough that new libmikmod loaders should be plugged in without even touching the code (only mloader.c's final part). Some might require changing MREADER * to URL (e.g. amf, it).