[Xcb] configure output

[Vincent Torri]

hey,

i was surprised to see that xinput was not installed. Looking at 
configure.ac, it seems that it is disabled by default. Maybe configure 
should output the status of the different extensions. Below is a patch for 
that. Feel free to apply it, modify it, or ignore it

Vincent

diff --git a/configure.ac b/configure.ac
index c5f454b..0851ec2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -212,6 +212,31 @@ echo "    XDM support.........: ${have_xdmcp}"
  echo "    Build unit tests....: ${HAVE_CHECK}"
  echo "    XCB buffer size.....: ${xcb_queue_buffer_size}"
  echo ""
+echo "  X11 extensions"
+echo "    Composite...........: ${BUILD_COMPOSITE}"
+echo "    Damage..............: ${BUILD_DAMAGE}"
+echo "    Dpms................: ${BUILD_DPMS}"
+echo "    Dri2................: ${BUILD_DRI2}"
+echo "    Glx.................: ${BUILD_GLX}"
+echo "    Randr...............: ${BUILD_RANDR}"
+echo "    Record..............: ${BUILD_RECORD}"
+echo "    Render..............: ${BUILD_RENDER}"
+echo "    Resource............: ${BUILD_RESOURCE}"
+echo "    Screensaver.........: ${BUILD_SCREENSAVER}"
+echo "    selinux.............: ${BUILD_SELINUX}"
+echo "    Shape...............: ${BUILD_SHAPE}"
+echo "    Shm.................: ${BUILD_SHM}"
+echo "    Sync................: ${BUILD_SYNC}"
+echo "    Xevie...............: ${BUILD_XEVIE}"
+echo "    Xfixes..............: ${BUILD_XFIXES}"
+echo "    Xfree86-dri.........: ${BUILD_XFREE86_DRI}"
+echo "    xinerama............: ${BUILD_XINERAMA}"
+echo "    xinput..............: ${BUILD_XINPUT}"
+echo "    xprint..............: ${BUILD_XPRINT}"
+echo "    xtest...............: ${BUILD_XTEST}"
+echo "    xv..................: ${BUILD_XV}"
+echo "    xvmc................: ${BUILD_XVMC}"
+echo ""
  echo "  Used CFLAGS:"
  echo "    CPPFLAGS............: ${CPPFLAGS}"
  echo "    CFLAGS..............: ${CFLAGS}"