https://bugs.gentoo.org/910283
https://github.com/milkytracker/MilkyTracker/commit/7e9171488fc47ad2de646a4536794fda21e7303d
https://github.com/milkytracker/MilkyTracker/issues/316
https://github.com/milkytracker/MilkyTracker/issues/318

From 7e9171488fc47ad2de646a4536794fda21e7303d Mon Sep 17 00:00:00 2001
From: Leon van Kammen <leonvankammen@gmail.com>
Date: Thu, 6 Jul 2023 14:38:20 +0200
Subject: [PATCH] possible bugfix: return nPorts

--- a/src/midi/posix/MidiReceiver_pthread.cpp
+++ b/src/midi/posix/MidiReceiver_pthread.cpp
@@ -145,4 +145,5 @@ unsigned int MidiReceiver::countPorts()
 	}
 	delete midiin;
 	midiin = NULL;
-}
\ No newline at end of file
+  return nPorts;
+}