SteamOS 3.5 - Client 128: 'Munt MT-32' Misssing

[kingjoma]

SteamOS 3.5 - Client 128: 'Munt MT-32' Misssing

[kingjoma]

Solved. Needed to install the alsa-lib package from Arch Linux Repo.

[sergm]

Hi,

I suppose, the build of mt32emu-qt doesn't include support for ALSA MIDI. This is an optional dependency, and is included in the build on Linux systems only, otherwise the compilation proceeds without ALSA MIDI driver. This is controlled by CMake property mt32emu-qt_WITH_ALSA_MIDI_SEQUENCER, check if it is enabled. Ultimately, ALSA MIDI driver resides in ALSADriver.cpp which must be compiled during the build for it to work. If the compilation breaks with this property enabled, some more packages might might need to be added.

Good luck!

[kingjoma]

Hi. Thanks for the quick response.

The build I have includes the following directory:
../munt/mt32emu_alsadrv

I read the readme.txt file in that directory and with the intention to do the following as per the readme notes:

make
su root
make install

After running make I get the following error:
src/asladrv.cpp:36:10: fatal error: alsa/version.h: No such file or directory

I then checked the contents of
../munt/mt32emu_alsadrv/src
and both alsadrv.cpp and alsadrv.h are present in that folder. Where is the alsa/version.h supposed to be located?

Can you provide further troubleshooting guidance?

Thanks

[sergm]

Hmm, such an error is very likely an indication of missing ALSA development files, AIUI. I have no clue how the related package is named in this OS, so can't be more helpful. However, you probably don't want to compile mt32emu_alsadrv. That is a separate project unrelated to mt32emu-qt, and you might miss its features if switched to it. I'd recommend applying further effort to making mt32emu-qt compiled with full ALSA MIDI support instead.

[kingjoma]

Hi

Thanks. The guidance to ensure the correct option in the mt32emu-qt compile is selected was great.

To provide further context SteamOS is based on Arch Linux.

What distros did you have in mind when writing the code?

I found the following logic in the Cmakelists.txt file:

find_package(ALSA MODULE)
if(ALSA_FOUND)
  add_definitions(-DWITH_ALSA_AUDIO_DRIVER)
  list(APPEND EXT_LIBS ${ALSA_LIBRARIES})
  include_directories(${ALSA_INCLUDE_DIRS})
  list(APPEND mt32emu_qt_SOURCES src/audiodrv/AlsaAudioDriver.cpp)
  if(mt32emu-qt_WITH_ALSA_MIDI_SEQUENCER)
    add_definitions(-DWITH_ALSA_MIDI_DRIVER)
    list(APPEND mt32emu_qt_SOURCES src/mididrv/ALSADriver.cpp)
  endif()
endif()

I think the clue to solving this particular issue is where in the OS file structure is the compiler supposed to be looking for ALSA MODULE and what file names and/or libraries is it looking for to satisfy the find_package command. Is it distro specific?

Thanks.