optional_depends "latex2html"                         \
                 "--with-latex2html"                  \
                 "--without-latex2html"               \
                 "to enable latex2html documentation" &&

optional_depends "tetex-texmf"                        \
                 "--with-tetex-texmf"                 \
                 "--without-tetex-texmf"              \
                 "to enable vips image processing"
