anchor.diff:      "--${boolEn (speex != null)}-libspeex"
       /**/(fflag "--disable-libsrt" "4.0")
       "--${boolEn (libssh != null)}-libssh"
  +    /**/(fflag "--disable-libtensorflow" "4.1")
       #"--${boolEn (tesseract != null)}-libtesseract"
       /**/"--disable-libtesseract"
       "--${boolEn (libtheora != null)}-libtheora"
  
positive.code:     #"--${boolEn (libcdio != null)}-libcdio"
      /**/"--disable-libcdio"
      /**/(fflag "--disable-libcodec2" "4.0")
      "--${boolEn (
        libdc1394 != null
        && libraw1394 != null)}-libdc1394"
  
negative.code:     "--disable-libilbc"
      (fflag "--${boolEn (jack2_lib != null)}-libjack" "4.0")
      "--${boolEn (kvazaar != null)}-libkvazaar"
      /**/(fflag "--disable-liblensfun" "4.1")
      "--${boolEn (libmodplug != null)}-libmodplug"
      "--${boolEn (lame != null)}-libmp3lame"
      #"--${boolEn (opencore-amr != null)}-libopencore-amrnb"
  