message "MediaTomb requires either sqlite or mysql to store it's db"
optional_depends sqlite \
                 "--enable-sqlite" \
                 "--disable-sqlite" \
                 "to store the media db in sqlite" &&
optional_depends mysql \
                 "--enable-mysql" \
                 "--disable-mysql" \
                 "store the media db in mysql" &&
optional_depends expat \
                 "--enable-expat" \
                 "--disable-expat" \
                 "use the expat XML parser" &&
optional_depends zlib \
                 "" \
                 "" \
                 "for auto creation of the media db" &&
optional_depends file \
                 "--enable-libmagic" \
                 "--disable-libmagic" \
                 "file type recognition" &&
optional_depends spidermonkey \
                 "--enable-libjs" \
                 "--disable-libjs" \
                 "personalized virtual containers" &&
message "mediatomb depends on either taglib or id3lib, but NOT both" &&
optional_depends taglib \
                 "--enable-taglib" \
                 "--disable-taglib" \
                 "to parse id3 tags" &&
optional_depends id3lib \
                 "--enable-id3lib" \
                 "--disable-id3lib" \
                 "to parse id3 tags" &&
optional_depends libexif \
                 "--enable-libexif" \
                 "--disable-libexif" \
                 "to gather metadata from JPEG files" &&
optional_depends curl \
                 "--enable-curl" \
                 "--disable-curl" \
                 "to fetch content from the web" &&
optional_depends libextractor \
                 "--enable-libextractor" \
                 "--disable-libextractor" \
                 "to gather metadata from various files (NOT recommended)" &&
optional_depends LIBAVCODEC \
                 "--enable-ffmpeg --with-ffmpeg-h=/usr/include/libavformat" \
                 "--disable-ffmpeg" \
                 "to gather metadata from video files" 
