- add sndio

Index: setup/SPFILDEF.i
--- setup/SPFILDEF.i.orig
+++ setup/SPFILDEF.i
@@ -88,6 +88,9 @@ static void DoMYOSGLUEdepends(tDoOneDepends p)
 				case gbk_sndapi_ddsp:
 					s = "SGLUDDSP.h";
 					break;
+				case gbk_sndapi_sndio:
+					s = "SGLUSNIO.h";
+					break;
 			}
 
 			if (nullpr != s) {
