silence all gcc warnings

include/draw.h

@@ -1,5 +1,7 @@
+#ifdef PLAN9
 #pragma src "/sys/src/libdraw"
 #pragma lib "libdraw.a"
+#endif
 
 typedef struct	Cachefont Cachefont;
 typedef struct	Cacheinfo Cacheinfo;
@@ -15,8 +17,10 @@ typedef struct	RGB RGB;
 typedef struct	Screen Screen;
 typedef struct	Subfont Subfont;
 
+#ifdef VARARGCK
 #pragma varargck	type	"R"	Rectangle
 #pragma varargck	type	"P"	Point
+#endif
 extern	int	Rfmt(Fmt*);
 extern	int	Pfmt(Fmt*);