Running the server...
FATAL_ERROR: No valid sound driver
FATAL_ERROR: Server exited
any idea ?
You need to install jack. I think I used JackOSX, but there is also a jack available from macports. Once it's installed, you'll need to run it from the terminal before loading moc. I usually use this command :
jackd -d coreaudio &
then you can load mocp.
Don't forget to build moc with vorbis:
port uninstall moc port clean moc port install moc +vorbis
To add the vorbis variant you do not need to unsinstall moc. Instead, use this command:
sudo port upgrade --enforce-variants moc +vorbis