assume default values if xdg dirs not set

.local/bin/dmenuunicode

@@ -5,7 +5,7 @@
 # Must have xclip installed to even show menu.
 xclip -h 2>/dev/null || exit 1
 
-chosen=$(cut -d ';' -f1 $XDG_DATA_HOME/larbs/emoji | dmenu -i -l 20 | sed "s/ .*//")
+chosen=$(cut -d ';' -f1 ${XDG_DATA_HOME:$HOME/.local/share}/larbs/emoji | dmenu -i -l 20 | sed "s/ .*//")
 
 [ "$chosen" != "" ] || exit