A scrip to install Haskell Stack and set up things properly on Raspbian

install-haskell-stack-arm.sh

#!/bin/sh

# Install stack
curl -sSL https://get.haskellstack.org/ | sh

# Install LLVM
sudo apt-get install llvm-3.7

# Add symbolic links to opt and llc
ln -s /usr/bin/opt-3.7 /usr/bin/opt
ln -s /usr/bin/llc-3.7 /usr/bin/llc

# Remove the symbolic link to ghc
rm ~/.stack/programs/arm-linux/ghc-8.0.1/bin/ghc

# Wrap ghc binary in a shell script
cat > ~/.stack/programs/arm-linux/ghc-8.0.1/bin/ghc-arm-wrapper.sh << 'END'
#!/bin/sh

ghc-8.0.1 -opta-march=armv7-a $@
END

# Create new symbolic link to ghc
ln ~/.stack/programs/arm-linux/ghc-8.0.1/bin/ghc-arm-wrapper.sh ~/.stack/programs/arm-linux/ghc-8.0.1/bin/ghc