the ECHO macro is set to "echo" by default, but it is set to "true" if
make(1) is invoked with the -s option while ECHO_CMD is always set to
the echo command.
Use command macros where appropriate.
Remove unnecessary patches/patch-ab (patches a generated file).
Remove all other patches (author incorporated them).
Remove erroneous credit to NetBSD.
PR: 21053, 21334
Approved by: will
(depending on the talents of the user) from a MIDI or PC keyboard, and
outputs to /dev/dsp or to a .wav file.
PR: 21053
Submitted by: Trevor Johnson <trevor@jpj.net>