I apologize for the the failed builds. I just simply do not know how to conditionally build files. Checking for headers and libraries is not a problem, but deciding whether or not to build some files is a different story. If you need to revert the change go ahead and do so, I'll need to assistance in the conditional configuration, though.
The code is failing to compile because there's a some stuff in Sounds/GNUmakefile (*_BUNDLE_LIBS) that will want to link up against libsndfile and libao. There's also a hack to compile this code in that same makefile (I added OBJCFLAGS += -I../Headers/Additions).
The sound bundle stuff I had were never in Tools. I initially created a new folder named Sound/. Since Greg had created a new one to put all the .wav files I decided to use that instead.
Just let me know what I need to do and I'll get on it as soon as possible.
PS: I'm glad Greg was able to build it, at least now I know somewhere other than my PC.