use _X_UNUSED for compiler-warnings

Signed-off-by: Thomas E. Dickey <dickey@invisible-island.net>

3 files changed, 8 insertions, 4 deletions

diff --git a/src/Poly.c b/src/Poly.c
index 731f4a1..aa69eeb 100644
--- a/src/Poly.c
+++ b/src/Poly.c
@@ -89,7 +89,7 @@ XRenderComputeIntersect (XLineFixed *l1, XLineFixed *l2)
 static int
 XRenderComputeTrapezoids (Edge		*edges,
 			  int		nedges,
-			  int		winding,
+			  int		winding _X_UNUSED,
 			  XTrapezoid	*traps,
 			  int           *ntraps,
 			  int           maxtraps)
@@ -237,8 +237,8 @@ XRenderCompositeDoublePoly (Display		    *dpy,
 			    _Xconst XRenderPictFormat	*maskFormat,
 			    int			    xSrc,
 			    int			    ySrc,
-			    int			    xDst,
-			    int			    yDst,
+			    int			    xDst _X_UNUSED,
+			    int			    yDst _X_UNUSED,
 			    _Xconst XPointDouble    *fpoints,
 			    int			    npoints,
 			    int			    winding)
diff --git a/src/Xrender.c b/src/Xrender.c
index 11affad..7bd00bc 100644
--- a/src/Xrender.c
+++ b/src/Xrender.c
@@ -295,7 +295,7 @@ XRenderFindDisplay (Display *dpy)
 }
 
 static int
-XRenderCloseDisplay (Display *dpy, XExtCodes *codes)
+XRenderCloseDisplay (Display *dpy, XExtCodes *codes _X_UNUSED)
 {
     XRenderExtDisplayInfo *info = XRenderFindDisplay (dpy);
     if (info && info->info) XFree (info->info);
diff --git a/src/Xrenderint.h b/src/Xrenderint.h
index e424c37..1a9b864 100644
--- a/src/Xrenderint.h
+++ b/src/Xrenderint.h
@@ -33,6 +33,10 @@
 #include <X11/extensions/renderproto.h>
 #include "Xrender.h"
 
+#ifndef _X_UNUSED
+#define _X_UNUSED /* nothing */
+#endif
+
 typedef struct {
     Visual		*visual;
     XRenderPictFormat	*format;