obsoleted - renamed to VL_PROG_FIG2DEV
If `fig2dev' is found, sets the output variable `FIG2DEV' to `fig2dev',
and `FIG2DEV_ESPLANG' to the graphics language which can be used to
produce Encapsulated PostScript. Older versions of `fig2dev' produce
EPS with `-Lps' and new versions with `-Leps', this macro finds out the
correct language option automatically.