Oops.  The option is --with-xkb-bin-directory, not --with-xkb-bin-dir


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4656 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/BUILDING.txt b/BUILDING.txt
index 2532a3e..ee1141a 100644
--- a/BUILDING.txt
+++ b/BUILDING.txt
@@ -160,7 +160,7 @@
       --with-fontdir=/usr/share/X11/fonts \
       --with-xkb-path=/usr/share/X11/xkb \
       --with-xkb-output=/var/lib/xkb \
-      --with-xkb-bin-dir=/usr/bin \
+      --with-xkb-bin-directory=/usr/bin \
       --with-serverconfig-path=/usr/lib[64]/xorg \
       --with-dri-driver-path=/usr/lib[64]/dri \
       {additional configure options}