Index: src/OFThread.m
==================================================================
--- src/OFThread.m
+++ src/OFThread.m
@@ -28,10 +28,16 @@
 # include <sched.h>
 #endif
 #include "unistd_wrapper.h"
 
 #include "platform.h"
+
+#if defined(OF_MORPHOS) && !defined(OF_IXEMUL)
+# define BOOL EXEC_BOOL
+# include <proto/dos.h>
+# undef BOOL
+#endif
 
 #ifdef OF_WII
 # define BOOL OGC_BOOL
 # define nanosleep ogc_nanosleep
 # include <ogcsys.h>
@@ -187,10 +193,15 @@
 
 	if (rqtp.tv_sec != floor(timeInterval))
 		@throw [OFOutOfRangeException exception];
 
 	nanosleep(&rqtp, NULL);
+#elif defined(OF_MORPHOS) && !defined(OF_IXEMUL)
+	if (timeInterval * 50 > ULONG_MAX)
+		@throw [OFOutOfRangeException exception];
+
+	Delay(timeInterval * 50);
 #elif defined(OF_NINTENDO_DS)
 	uint64_t counter;
 
 	if (timeInterval > UINT64_MAX / 60)
 		@throw [OFOutOfRangeException exception];