anchor.diff:      && echo ${TZ} > /etc/timezone \
       && adduser -h /tmp -s /sbin/nologin -S -D -H shadowsocks \
       && adduser -h /tmp -s /sbin/nologin -S -D -H kcptun \
  -    && apk del .build-deps .build-deps-kernel \
  +    && apk del .build-deps \
       && apk add --no-cache \
         $(scanelf --needed --nobanner /usr/bin/ss-* /usr/local/bin/obfs-* \
         | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
  
positive.code:         pcre-dev \
          tar \
          git \
      && curl -sSL ${LINUX_HEADERS_DOWNLOAD_URL} > /linux-headers-4.4.6-r2.apk \
      && apk add --virtual .build-deps-kernel /linux-headers-4.4.6-r2.apk \
      && git clone ${SS_DOWNLOAD_URL} \
      && (cd shadowsocks-libev \
      && git checkout tags/${SS_LIBEV_VERSION} -b ${SS_LIBEV_VERSION} \
  
negative.code:         automake \
          build-base \
          curl \
          linux-headers \
          c-ares-dev \
          libev-dev \
          libtool \
  