diff --git a/configure.ac b/configure.ac
index da95ff8b..ba640006 100644
--- a/configure.ac
+++ b/configure.ac
@@ -76,10 +76,7 @@ PKG_CHECK_MODULES(LIBDRM_RADEON, [libdrm_radeon])
 
 # Obtain compiler/linker options for the driver dependencies
 PKG_CHECK_MODULES(XORG, [xorg-server >= 1.18 xproto fontsproto xf86driproto $REQUIRED_MODULES])
-PKG_CHECK_MODULES(XEXT, [xextproto >= 7.0.99.1],
-                  HAVE_XEXTPROTO_71="yes"; AC_DEFINE(HAVE_XEXTPROTO_71, 1, [xextproto 7.1 available]),
-                  HAVE_XEXTPROTO_71="no")
-AM_CONDITIONAL(HAVE_XEXTPROTO_71, [ test "$HAVE_XEXTPROTO_71" = "yes" ])
+PKG_CHECK_MODULES(XEXT, [xextproto >= 7.0.99.1])
 
 # Define a configure option for an alternate X Server configuration directory
 AC_ARG_WITH(xorg-conf-dir,
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 8ece14fa..185a1d5d 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -44,12 +44,7 @@
 #include "drmmode_display.h"
 
 /* DPMS */
-#ifdef HAVE_XEXTPROTO_71
 #include <X11/extensions/dpmsconst.h>
-#else
-#define DPMS_SERVER
-#include <X11/extensions/dpms.h>
-#endif
 
 #define DEFAULT_NOMINAL_FRAME_RATE 60
 
diff --git a/src/radeon_kms.c b/src/radeon_kms.c
index d0044238..77377dc7 100644
--- a/src/radeon_kms.c
+++ b/src/radeon_kms.c
@@ -45,12 +45,7 @@
 #include <present.h>
 
 /* DPMS */
-#ifdef HAVE_XEXTPROTO_71
 #include <X11/extensions/dpmsconst.h>
-#else
-#define DPMS_SERVER
-#include <X11/extensions/dpms.h>
-#endif
 
 #ifdef __DragonFly__
 #include <xf86_OSproc.h>
diff --git a/src/radeon_video.c b/src/radeon_video.c
index ddbac53b..2467440e 100644
--- a/src/radeon_video.c
+++ b/src/radeon_video.c
@@ -15,12 +15,7 @@
 #include "dixstruct.h"
 
 /* DPMS */
-#ifdef HAVE_XEXTPROTO_71
 #include <X11/extensions/dpmsconst.h>
-#else
-#define DPMS_SERVER
-#include <X11/extensions/dpms.h>
-#endif
 
 #include <X11/extensions/Xv.h>
 #include "fourcc.h"