MFINPUTS="$datadir/mf:"${MFINPUTS:=":"}
TEXINPUTS="$datadir/tex:$datadir/ps:"${TEXINPUTS:=":"}
TFMFONTS="$datadir/tfm:"${TFMFONTS:=":"}
-LILYPONDPREFIX="$datadir"
-export MFINPUTS TEXINPUTS TFMFONTS GS_LIB GS_FONTPATH LILYPONDPREFIX
+export MFINPUTS TEXINPUTS TFMFONTS GS_LIB GS_FONTPATH