diff --git a/configure.ac.in b/configure.ac.in
index baef103..7e732ac 100644
--- a/configure.ac.in
+++ b/configure.ac.in
@@ -75,6 +75,10 @@ XDT_CHECK_OPTIONAL_PACKAGE([WNCK], [libwnck-1.0], [2.0], [wnck], [building with
 AM_CONDITIONAL([HAVE_WNCK], [test x"$WNCK_FOUND" = x"yes"])
 XDT_CHECK_OPTIONAL_PACKAGE([GKSU], [libgksu2], [2.0], [gksu], [building with libgksu to run as root], [yes])
 AM_CONDITIONAL([HAVE_GKSU], [test x"$GKSU_FOUND" = x"yes"])
+XDT_CHECK_OPTIONAL_PACKAGE([GTK3],
+                           [gtk+-3.0], [3.2.0], [gtk3],
+                           [GTK+ 3 support], [no])
+AM_CONDITIONAL([USE_GTK3], [test "x$GTK3_FOUND" = "xyes"])
 
 dnl ***********************************
 dnl ********** Check for skel *********
@@ -151,7 +155,11 @@ echo
 echo "* Gksu:          ${GKSU_VERSION:-no}"
 echo "* Wnck:          ${WNCK_VERSION:-no}"
 echo "* Cairo:         ${CAIRO_VERSION}"
+if test "x$GTK3_FOUND" = "xyes" ; then
+echo "* GTK+:          ${GTK3_VERSION}"
+else
 echo "* GTK+:          ${GTK_VERSION}"
+fi
 echo "* Target OS:     $target_os ($ac_os_implementation)"
 echo "* Debug:         $enable_debug"
 echo