--- configure.ac
+++ configure.ac
@@ -987,6 +987,11 @@
    X_SERVER="/usr/X11R6/bin/X"
    GDM_USER_PATH="$GDM_USER_PATH:/usr/X11R6/bin"
    X_CONFIG_OPTIONS="-audit 0"
+elif test -x /usr/bin/X; then
+   X_PATH="/usr/bin"
+   X_SERVER_PATH="/usr/bin"
+   X_SERVER="/usr/bin/X"
+   X_CONFIG_OPTIONS="-audit 0"
 elif test -x /usr/bin/Xorg; then
    X_PATH="/usr/bin"
    X_SERVER_PATH="/usr/bin"