diff --git a/Xext/panoramiX.c b/Xext/panoramiX.c
index 1c7197d5d..be475f7f4 100644
--- a/Xext/panoramiX.c
+++ b/Xext/panoramiX.c
@@ -592,8 +592,6 @@ PanoramiXExtensionInit(void)
 
 }
 
-extern Bool CreateConnectionBlock(void);
-
 Bool
 PanoramiXCreateConnectionBlock(void)
 {
diff --git a/Xext/xres.c b/Xext/xres.c
index 7d21ad7e9..445abcab8 100644
--- a/Xext/xres.c
+++ b/Xext/xres.c
@@ -190,8 +190,6 @@ DestroyConstructResourceBytesCtx(ConstructResourceBytesCtx *ctx)
     ht_destroy(ctx->visitedResources);
 }
 
-extern void ResExtensionInit(void);
-
 static int
 ProcXResQueryVersion(ClientPtr client)
 {
diff --git a/Xext/xtest.c b/Xext/xtest.c
index c593372e7..2abdc7f58 100644
--- a/Xext/xtest.c
+++ b/Xext/xtest.c
@@ -57,8 +57,6 @@
 
 #include "extinit.h"
 
-extern int DeviceValuator;
-
 /* XTest events are sent during request processing and may be interruped by
  * a SIGIO. We need a separate event list to avoid events overwriting each
  * other's memory */