Arch Linux

Hi, thanks for reporting.

Looking at CMakeLists.txt I see this:

# Linux MIDI support requires ALSA and RtMidi
if(ALSA_FOUND)
find_package(RTMIDI 2.1.0)
if(RTMIDI_FOUND)
message(STATUS "Enabled MIDI support (ALSA/RtMidi)")
add_subdirectory(src/midi)
else()
message("MIDI support disabled (RtMidi unavailable)")
endif()
else()
message("MIDI support disabled (ALSA unavailable)")
endif()

This is an indication that ALSA is required for using RtMidi, but Milkytracker is currently compiled for using Jack 2.

I don't have a MIDI device available right now.

Could you please try installing Jack2 and then connecting the MIDI device with Cadence, possibly using a2jmidid, as described here: https://wiki.archlinux.org/index.php/Professional_audio#JACK

If using Jack + MIDI doesn't work out, I will happily change the compilation settings for Milkytracker.

If both ALSA and Jack support can be used when compiling Milkytracker, I would be happy to look into that as well.

when I look at milkytracker I see:

$ pacman -Si milkytracker
Repository : community
Name : milkytracker
Version : 1.02.00-2
Description : Music tracker inspired by Fast Tracker II
Architecture : x86_64
URL : https://milkytracker.titandemo.org/
Licenses : GPL3
Groups : None
Provides : None
Depends On : alsa-lib sdl2
Optional Deps : jack: JACK audio support
Conflicts With : None
Replaces : None
Download Size : 1057.14 KiB
Installed Size : 3684.00 KiB
Packager : Eli Schwartz <eschwartz@archlinux.org>
Build Date : Wed 26 Sep 2018 03:10:33 PM -03
Validated By : MD5 Sum SHA-256 Sum Signature

it's already doing alsa (that is to say: it's already being compiled with jack and alsa together), and jack is optional. either way there's no midi support except through rtmidi. as can be seen here https://github.com/milkytracker/MilkyTracker/tree/master/src/midi/posix

(I don't have a midi device available right now, either, but someone who does tried with jack and couldn't get it to work until they rebuilt with (alsa+)rtmidi.)

Thanks for checking. I'll look into adding support for RtMidi.

Added support for rtmidi, lhasa and zziplib. I connected a MIDI keyboard, but I could not confirm that it works. I probably need to spend an evening configuring ALSA to confirm that it is working (even though I prefer Jack). :)

The updated version should appear in [community] shortly.