depends  bison
depends  flex
depends  fftw
depends  tk

optional_depends "proj-4"    "" "" "for external proj-4 support"

optional_depends "readline"   "--with-readline"  "--without-readline"  "for readline support"
optional_depends "ncurses"    "--with-curses"    "--without-ncurses"   "for ncurses support"
optional_depends "%JPEG"      "--with-jpeg"      "--without-jpeg"      "for jpeg graphics support"
optional_depends "tiff"       "--with-tiff"      "--without-tiff"      "for tiff graphics support"
optional_depends "libpng"     "--with-png"       "--without-png"       "for png graphics support"
optional_depends "cairo"      "--with-cairo"     "--without-cairo"     "for cairo functionality"
optional_depends "ffmpeg"     "--with-ffmpeg"    "--without-ffmpeg"    "audio support"
optional_depends "unixODBC"   "--with-odbc"      "--without-odbc"      "additional database support"
optional_depends "freetype2"  "--with-freetype"  "--without-freetype"  "additional text support"
optional_depends "Python"     "--with-python"    "--without-python"    "for Python support"
optional_depends "mysql"      "--with-mysql"     "--without-mysql"     "for database support"
optional_depends "sqlite"     "--with-sqlite"    "--without-sqlite"    "for database support"
optional_depends "openMotif"  "--with-motif"     "--without-motif"     "for motif graphics support"
optional_depends "postgresql" "--with-postgres"  "--without-postgres"  "for postgresql database support"
optional_depends "wxGTK"      "--with-wxwidgets" "--without-wxwidgets" "for wxWidgets graphics support"
optional_depends "lapack"     "--with-lapack"    "--without-lapack"    "for lapack functionality"
optional_depends "gdal"       "--with-gdal"      " --without-gdal"     "for gdal support"

