diff -ru ZynAddSubFX-2.4.1.old/src/Makefile.inc ZynAddSubFX-2.4.1/src/Makefile.inc
--- ZynAddSubFX-2.4.1.old/src/Makefile.inc	2010-06-27 20:26:52.000000000 +0200
+++ ZynAddSubFX-2.4.1/src/Makefile.inc	2010-06-28 19:58:38.523000001 +0200
@@ -39,8 +39,8 @@
 
 #Next line sets if the synth is compiled for DSSI plugin (as .so file)
 #If this setting is "YES", MIDI in and AUDIOOUT are set automatically to DSSI
-LINUX_DSSI=NO
-#LINUX_DSSI=YES
+#LINUX_DSSI=NO
+LINUX_DSSI=YES
 
 #Next line sets if the LASH session handler will be used
 #LINUX_USE_LASH=YES