[pyatspi2] Add configure check for python-xlib

[Mike Gorse <mgorse src gnome org>]

commit a5bc5391f0e7a9dbfa06c7775bb84e3cde7bbccc
Author: Mike Gorse <mgorse novell com>
Date:   Thu Oct 7 15:35:25 2010 +0200

    Add configure check for python-xlib

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 45971cf..30cc5f5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -32,6 +32,7 @@ AM_CONDITIONAL(ENABLE_TESTING, test x$enable_tests == xyes)
 
 if test "$enable_tests" = "yes"; then
         AM_CHECK_PYMOD(dbus, , , [AC_MSG_ERROR(Could not find python module: dbus)])
+AM_CHECK_PYMOD(xlib,,,[AC_MSG_ERROR(Could not find python module: xlib)])
 
         PKG_CHECK_MODULES(DBUS, [dbus-1 >= 1.0])
         AC_SUBST(DBUS_LIBS)