diff --git a/configure.ac b/configure.ac
index 0a58355..74912f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -59,10 +59,7 @@ XORG_DRIVER_CHECK_EXT(DPMSExtension, xextproto)
 
 # Obtain compiler/linker options for the driver dependencies
 PKG_CHECK_MODULES(XORG, [xorg-server >= 1.18 xproto fontsproto xf86dgaproto $REQUIRED_MODULES])
-PKG_CHECK_MODULES(XEXT, [xextproto >= 7.0.99.1],
-                  HAVE_XEXTPROTO_71="yes"; AC_DEFINE(HAVE_XEXTPROTO_71, 1, [xextproto 7.1 available]),
-                  HAVE_XEXTPROTO_71="no")
-AM_CONDITIONAL(HAVE_XEXTPROTO_71, [ test "$HAVE_XEXTPROTO_71" = "yes" ])
+PKG_CHECK_MODULES(XEXT, [xextproto >= 7.0.99.1])
 
 # Checks for library functions
 # We don't use strlcat, strlcpy, or timingsafe_memcmp, but check to quiet
diff --git a/src/voodoo_dga.c b/src/voodoo_dga.c
index 17566ac..4c9cbb5 100644
--- a/src/voodoo_dga.c
+++ b/src/voodoo_dga.c
@@ -48,15 +48,7 @@
 
 #define _XF86DGA_SERVER_
 #include <X11/extensions/xf86dgaproto.h>
-
-#ifdef HAVE_XEXTPROTO_71
 #include <X11/extensions/dpmsconst.h>
-#else
-#define DPMS_SERVER
-#include <X11/extensions/dpms.h>
-#endif
-
-
 
  /***********************************************************************
  * DGA stuff
diff --git a/src/voodoo_driver.c b/src/voodoo_driver.c
index c6333d9..a8c238f 100644
--- a/src/voodoo_driver.c
+++ b/src/voodoo_driver.c
@@ -54,14 +54,7 @@
 
 #define _XF86DGA_SERVER_
 #include <X11/extensions/xf86dgaproto.h>
-
-#ifdef HAVE_XEXTPROTO_71
 #include <X11/extensions/dpmsconst.h>
-#else
-#define DPMS_SERVER
-#include <X11/extensions/dpms.h>
-#endif
-
 
 static const OptionInfoRec * VoodooAvailableOptions(int chipid, int busid);
 static void	VoodooIdentify(int flags);
diff --git a/src/voodoo_hardware.c b/src/voodoo_hardware.c
index f5ac5d2..8ced583 100644
--- a/src/voodoo_hardware.c
+++ b/src/voodoo_hardware.c
@@ -48,13 +48,7 @@
 #include "voodoo.h"
 
 #include <X11/extensions/xf86dgaproto.h>
-
-#ifdef HAVE_XEXTPROTO_71
 #include <X11/extensions/dpmsconst.h>
-#else
-#define DPMS_SERVER
-#include <X11/extensions/dpms.h>
-#endif
 
 #include "mipict.h"
 #include "dixstruct.h"