These binaries were built +universal using MacPorts.
The following versions are included as of this commit:
fluidsynth: 1525a6fc0b59acafd309a8de8bfc89e9c2f0cda8
glib: 2.58.3_1
pcre: 8.44_1
readline: 8.1.000_0
libsndfile: 1.0.28_1