anchor.diff:    libsamplerate: env.LIBSAMPLERATE_VERSION, \
     libshine: env.LIBSHINE_VERSION, \
     libsoxr: env.SOXR_VERSION, \
  +  libsnappy: env.SNAPPY_VERSION, \
     libspeex: env.SPEEX_VERSION, \
     libsvtav1: env.SVTAV1_VERSION, \
     libtheora: env.THEORA_VERSION, \
  
positive.code:   --enable-librav1e \
    --enable-librubberband \
    --enable-libshine \
    --enable-libsoxr \
    --enable-libspeex \
    --enable-libsvtav1 \
  
negative.code:   LIBXML2_VERSION=$(pkg-config --modversion libxml-2.0) \
    SOXR_VERSION=$(pkg-config --modversion soxr) \
    LIBVO_AMRWBENC_VERSION=$(pkg-config --modversion vo-amrwbenc) \
    SNAPPY_VERSION=$(apk info -a snappy | head -n1 | awk '{print $1}' | sed -e 's/snappy-//') \
    jq -n \
    '{ \
    expat: env.EXPAT_VERSION, \
  