Renamed _X, fixed the regex, and that's it.

On OpenBSD, famitracker can be compiled just by running qmake4, then gmake CPATH=$CPATH (so that it can find your wine-dev headers without them being clutter in /usr/local/include). But, the user must make sure that moc is in the path and that it's called "moc". By default, it was installed as "moc4" for me, so I just made a symbolic link for that. An alias could work too, I guess.

The only files I changed at all were Fft.[cpp,h] to rename _X, and cqtmfc.cpp to fix the regex at line 291.