Add the #goo to allow use in C++.
Silence a few more warnings.
Strip down the mkfiles more.
Fix bug in X11 mouse handling, note groups.
diff --git a/src/libdraw/x11-itrans.c b/src/libdraw/x11-itrans.c
index b4d9e68..337bf5b 100644
--- a/src/libdraw/x11-itrans.c
+++ b/src/libdraw/x11-itrans.c
@@ -190,8 +190,15 @@
 	switch(e->type){
 	case ButtonPress:
 		be = (XButtonEvent*)e;
-		/* Fake message, just sent to make us announce snarf. */
-		if(be->send_event && be->state==~0 && be->button==~0)
+		/* 
+		 * Fake message, just sent to make us announce snarf.
+		 * Apparently state and button are 16 and 8 bits on
+		 * the wire, since they are truncated by the time they
+		 * get to us.
+		 */
+		if(be->send_event
+		&& (~be->state&0xFFFF)==0
+		&& (~be->button&0xFF)==0)
 			return -1;
 		/* BUG? on mac need to inherit these from elsewhere? */
 		m->xy.x = be->x;