depends  zlib    &&
depends  g++     &&
depends  python  &&
depends mpeg2dec &&
depends gtk+2    &&

optional_depends  gettext                        \
                  "--enable-nls"                 \
                  "--disable-nls"                \
                  "for Native Language Support" &&

optional_depends libgsf \
                 --enable-gsf \
                 --disable-gsf \
                 "for OLE2 plugin" &&

optional_depends exiv2 \
                 --enable-exiv2 \
                 --disable-exiv2 \
                 "for exiv2 support" &&

optional_depends xpdf \
                 --enable-xpdf \
                 --disable-xpdf \
                 "for xpdf-based extractor"
