fix for $HOME with trailing slash (do not expand then either… we could just

strip it, but that might have other problems, better is to use realpath(2),
e.g. via readlink(1), for normalisation, or have the sysop fix it)

XXX make realpath a builtin?

dot.mkshrc

@@ -1,4 +1,4 @@
-# $MirOS: src/bin/mksh/dot.mkshrc,v 1.35 2008/05/16 22:19:11 tg Exp $
+# $MirOS: src/bin/mksh/dot.mkshrc,v 1.36 2008/05/16 22:22:11 tg Exp $
 #-
 # ~/.mkshrc: mksh initialisation file for interactive shells
 
@@ -13,7 +13,7 @@ function precmd {
 PS1='$(precmd)${USER:=$(ulimit -c 0;id -un 2>&- || print \?)}@${HOSTNAME%%.*}:$(
 	typeset pfx=~ wd=${PWD:-?}
 	typeset -i n=${COLUMNS:-80}/3; (( n = n < 7 ? 7 : n ))
-	[[ $pfx = ?(/) ]] || wd=${wd/#$pfx/~}
+	[[ $pfx = ?(*/) ]] || wd=${wd/#$pfx/~}
 	pfx=; while (( (${#pfx} + ${#wd}) > n )); do
 		if [[ $wd = */* ]]; then
 			pfx=.../
@@ -46,7 +46,7 @@ DIRSTACKBASE=$(readlink -nf ~/. 2>&- || print -nr -- "$HOME")
 set -A DIRSTACK
 function chpwd {
 	DIRSTACK[0]=$(readlink -nf . 2>&- || print -r -- "$PWD")
-	[[ $DIRSTACKBASE = ?(/) ]] || \
+	[[ $DIRSTACKBASE = ?(*/) ]] || \
 	    DIRSTACK[0]=${DIRSTACK[0]/#$DIRSTACKBASE/~}
 	:
 }