depends -sub CXX gcc &&
depends cmake  &&
depends -sub OPENGL qt4 &&
depends gdal   &&
depends proj   &&
depends patchelf &&
depends PYTHON &&
optional_depends libexif \
                 "-DWITH_EXIF=on" \
                 "-DWITH_EXIF=off" \
                 "to create wayoints from geotagged images" &&
optional_depends libdmtx \
                 "-DWITH_DMTX=on" \
                 "-DWITH_DMTX=off" \
                 "to summarize waypoints as  2D barcode" &&
optional_depends log4c \
                 "-DWITH_LOG4C=on" \
                 "-DWITH_LOG4C=off" \
                 "support for logging" &&
optional_depends OPENGL \
                 "-DWITH_OPENGL=on" \
                 "-DWITH_OPENGL=off" \
                 "3D support" &&
optional_depends gpsd \
                 "-DWITH_GPSD=on" \
                 "-DWITH_GPSD=off" \
                 "to enable gpsd support" &&
suggest_depends garmindev \
                 "" \
                 "" \
                 "support for garmin devices" &&
suggest_depends gpsbabel \
                 "" \
                 "" \
                 "support for more gps data formats"