- Emulate SCHED_RESET_ON_FORK via pthread_atfork
- Switch to pthread_setschedparam as Linux sched_setscheduler
  operates on threads contrary to POSIX

--- como/base/wayland/app_singleton.h.orig	2024-02-27 13:02:31 UTC
+++ como/base/wayland/app_singleton.h
@@ -19,12 +19,17 @@ class app_singleton : public base::app_singleton (publ
         setenv("QT_QPA_PLATFORM", "wayland-org.kde.kwin.qpa", true);
         setenv("KWIN_FORCE_OWN_QPA", "1", true);
 
-#if HAVE_SCHED_RESET_ON_FORK
         int const minPriority = sched_get_priority_min(SCHED_RR);
         sched_param sp;
         sp.sched_priority = minPriority;
-        sched_setscheduler(0, SCHED_RR | SCHED_RESET_ON_FORK, &sp);
-#endif
+        if (pthread_setschedparam(pthread_self(), SCHED_RR, &sp))
+            return;
+
+        pthread_atfork(NULL, NULL, []() {
+            sched_param sp;
+            sp.sched_priority = 0;
+            pthread_setschedparam(pthread_self(), SCHED_OTHER, &sp);
+        });
 
         qapp = std::make_unique<QApplication>(argc, argv);
         prepare_qapp();