depends -sub CXX gcc && depends pkgconfig && depends ghostscript && optional_depends imagemagick '--with-magick' \ '--without-magick' \ '' && #optional_depends plotlib '--with-libplot' \ # '--without-libplot'\ # 'plotting support' && optional_depends gd '' '' '' && optional_depends libpng '' '' 'PNG support' && optional_depends plotutils "--with-libplot" \ "--without-libplot" \ "additional formats (svg)"