If you add a truetype font to a directory with truetype fonts
an restart xfs, the new font will not be added to the fonts.dir file.
The following patch fix this:

--- xfs.old	Fri Mar 31 18:24:23 2000
+++ xfs	Fri Mar 31 18:19:15 2000
@@ -28,7 +28,7 @@
 			fi
 			if test $NEEDED = yes; then
 				rm -f fonts.dir &>/dev/null
-				if test "x`ls |egrep --ignore-case -v '\.ttf$|^fonts\.'`" != x; then
+				if test "x`ls |egrep --ignore-case -v '\.ttf$|^fonts|^encodings\.'`"
!= x; then
 					# This directory contains fonts that are not TrueType...

 					mkfontdir -e /usr/X11R6/lib/X11/fonts/encodings \