diff --git a/hw/xquartz/pseudoramiX.c b/hw/xquartz/pseudoramiX.c
index 3e1050047..c650dd723 100644
--- a/hw/xquartz/pseudoramiX.c
+++ b/hw/xquartz/pseudoramiX.c
@@ -126,7 +126,7 @@ PseudoramiXAddScreen(int x, int y, int w, int h)
 // Initialize PseudoramiX.
 // Copied from PanoramiXExtensionInit
 void
-PseudoramiXExtensionInit(int argc, char *argv[])
+PseudoramiXExtensionInit(void)
 {
     Bool success = FALSE;
     ExtensionEntry      *extEntry;
@@ -257,7 +257,7 @@ ProcPseudoramiXGetScreenSize(ClientPtr client)
     REQUEST(xPanoramiXGetScreenSizeReq);
     WindowPtr pWin;
     xPanoramiXGetScreenSizeReply rep;
-    register int n, rc;
+    register int rc;
 
     TRACE();
 
diff --git a/hw/xquartz/xpr/dri.h b/hw/xquartz/xpr/dri.h
index 7d1c4f212..8717a5186 100644
--- a/hw/xquartz/xpr/dri.h
+++ b/hw/xquartz/xpr/dri.h
@@ -72,6 +72,9 @@ DRIFinishScreenInit(ScreenPtr pScreen);
 extern void
 DRICloseScreen(ScreenPtr pScreen);
 
+extern Bool
+DRIExtensionInit(void);
+
 extern void
 DRIReset(void);