anchor.diff:  #
   
   ######### Build image #########
  -FROM ubuntu:18.04 as build
  +FROM btccom/btcpool_build as build
   LABEL maintainer="Hanjiang Yu <hanjiang.yu@bitmain.com>"
   
   ARG BUILD_JOBS=1
  
positive.code: 
  # Install deb packages
  RUN apt-get update && apt-get install -y /work/package/*-main.deb
      
  
negative.code: ARG USER_DEFINED_COINBASE
  ARG USER_DEFINED_COINBASE_SIZE
  ARG WORK_WITH_STRATUM_SWITCHER
  
  # Checkout blockchain source (if exists)
  RUN [ -z ${CHAIN_URL} ] || git clone --branch ${CHAIN_TAG} --depth 1 ${CHAIN_URL} /tmp/bitcoin
  