anchor.diff:      && sed -i 's/^GhcLibHcOpts *= .*$/GhcLibHcOpts = -O2/g' mk/build.mk \
       && ./configure --target=arm-linux-gnueabihf --with-gcc=arm-linux-gnueabihf-gcc --prefix=/opt/ghc-cross-7.8.4 \
       && make && sudo make install \
  -    && cd .. && rm -rf ghc-7.8.4 \
  -    && sudo rm /opt/ghc-cross-7.8.4/bin/ghci* /opt/ghc-cross-7.8.4/bin/run*
  +    && cd .. && rm -rf ghc-7.10.2 \
  +    && sudo rm /opt/ghc-cross-7.10.2/bin/ghci* /opt/ghc-cross-7.10.2/bin/run*
   
  -RUN sudo ln -s /opt/ghc-cross-7.8.4/bin/arm-unknown-linux-gnueabihf-runghc-7.8.4 /opt/ghc-cross-7.8.4/bin/arm-unknown-linux-gnueabihf-runghc
  +RUN sudo ln -s /opt/ghc-cross-7.10.2/bin/arm-unknown-linux-gnueabihf-runghc-7.10.2 /opt/ghc-cross-7.10.2/bin/arm-unknown-linux-gnueabihf-runghc
   
  -RUN sudo ln -s /opt/ghc-cross-7.8.4/bin/arm-unknown-linux-gnueabihf-runghc /opt/ghc-cross-7.8.4/bin/arm-unknown-linux-gnueabihf-runhaskell
  +RUN sudo ln -s /opt/ghc-cross-7.10.2/bin/arm-unknown-linux-gnueabihf-runghc /opt/ghc-cross-7.10.2/bin/arm-unknown-linux-gnueabihf-runhaskell
   
  -RUN sudo ln -s /usr/bin/cabal-1.22 /usr/bin/cabal
  -RUN sudo ln -s /opt/ghc-cross-7.8.4/bin/arm-unknown-linux-gnueabihf-ghc-7.8.4 /usr/local/bin/arm-linux-ghc-7.8.4
  +RUN sudo ln -s /usr/bin/cabal-1.22 /usr/local/bin/cabal
  +RUN sudo ln -s /opt/ghc-cross-7.10.2/bin/arm-unknown-linux-gnueabihf-ghc-7.10.2 /usr/local/bin/arm-linux-ghc-7.10.2
   
   ADD ./cabal-arm /opt/cabal-arm
   RUN sudo chmod +x /opt/cabal-arm && sudo ln -s /opt/cabal-arm /usr/local/bin/cabal-arm
   
  -ENV PATH /opt/ghc-cross-7.8.4/bin:/opt/toolchain/gcc-linaro-arm-linux-gnueabihf/bin:$PATH +ENV PATH /opt/ghc-cross-7.10.2/bin:/opt/toolchain/gcc-linaro-arm-linux-gnueabihf/bin:$PATH 
positive.code: 
  RUN sudo apt-get update \
   && sudo apt-get install ${OPTS_APT} \
      libc6-i386 lib32stdc++6 zlib1g lib32gcc1 lib32z1 
      #\ lib32ncurses5
  
  RUN \
      sudo mkdir -p /opt/toolchain \
  
negative.code: #    docker run --rm -it --privileged -v `pwd`:/home/ghc alexeyraga/ghc-cross-arm /bin/bash
  #
  
  FROM alexeyraga/ghc-7.8.4:latest
  MAINTAINER Alexey Raga
  
  ## disable prompts from apt
  