--- xmil/sound/opmgeng.c	2004/08/20 12:09:20	1.2
+++ xmil/sound/opmgeng.c	2005/02/04 06:42:12	1.3
@@ -1,11 +1,12 @@
 #include	"compiler.h"
+
+#if defined(SUPPORT_TURBOZ) || defined(SUPPORT_OPM)
+
 #include	"sound.h"
 #include	"sndctrl.h"
 
-
 extern	OPMCFG	opmcfg;
 
-
 #define	CALCENV(e, c, s)													\
 	(c)->slot[(s)].freq_cnt += (c)->slot[(s)].freq_inc;						\
 	(c)->slot[(s)].env_cnt += (c)->slot[(s)].env_inc;						\
@@ -147,3 +148,4 @@ void SOUNDCALL opmgen_getpcm(void *hdl, 
 	(void)hdl;
 }
 
+#endif