Mesa (master): egl: Build egl_dri2 only when xcb-dri2 is available.

[Chia-I Wu]

Module: Mesa
Branch: master
Commit: bb217ba76a9c3823e074ec7708f07233a85eb4ac
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=bb217ba76a9c3823e074ec7708f07233a85eb4ac

Author: Chia-I Wu <olv at lunarg.com>
Date:   Fri Jul 16 19:39:58 2010 +0800

egl: Build egl_dri2 only when xcb-dri2 is available.

The driver does not build when xcb-dri2 is not available.

---

 configure.ac |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index f52c6db..1b116ae 100644
--- a/configure.ac
+++ b/configure.ac
@@ -970,12 +970,11 @@ if test "x$enable_egl" = xyes; then
         if test "$have_xcb_dri2" = yes; then
 	    EGL_DRIVER_DRI2=dri2
             DEFINES="$DEFINES -DHAVE_XCB_DRI2"
+	    if test "$have_libudev" = yes; then
+	        DEFINES="$DEFINES -DHAVE_LIBUDEV"
+	    fi
         fi
 
-        if test "$have_libudev" = yes; then
-	    EGL_DRIVER_DRI2=dri2
-            DEFINES="$DEFINES -DHAVE_LIBUDEV"
-        fi
 
         EGL_DRIVERS_DIRS="$EGL_DRIVERS_DIRS $EGL_DRIVER_DRI2"
     fi