cmake REQUIRE_HAVE_LIBUV examples

meganz/MEGAcmd build/cmake/modules/megacmd_options.cmake :18

add_compile_definitions(
        REQUIRE_HAVE_FFMPEG
        REQUIRE_HAVE_PDFIUM
        REQUIRE_USE_MEDIAINFO
        REQUIRE_HAVE_LIBUV
        REQUIRE_USE_PCRE
    )