I’ve managed to compile GHC-7.8.3 on an Nvidia Tegra (Jetson K1) and Adapteva Parallella-16!

It took a while, but I’ve finally managed to compile and run GHC-7.8.3 on an Nvidia Jetson K1 board.
The Jetson K1 board has a 32-bit Nvidia Tegra processor (essentially a quad-core ARM Cortex A15), and an integrated 192 core Nvidia GPU.
Mine came with a standard Ubuntu 14.04 distribution and nothing more really.

After a lot of trial and error, I finally got it up and running without any noticeable issues.
I tested my routine on the Parallella-16 also running Ubuntu 14.04 and it seems to work excellent as well!
Here’s what I did:

1. Start with a fresh board, with Ubuntu 14.04 LTS
2. Uncomment universe lines from /etc/apt/sources, so that you’ll have access to the newest packages
3. sudo apt-get update && sudo apt-get upgrade
4. You will need GHC7.6.3 or earlier to bootstrap the compilation. I also decided to use clang+gold because it is quicker and gcc was a bit finicky for me.
   sudo apt-get install ghc automake build-essential cabal-install groff alex happy llvm clang binutils
5. I installed Alex and Happy in Cabal, cabal update && cabal install alex happy
6. I cloned the latest GHC-7.8 to my SD card.
   git clone -b ghc-7.8 git://git.haskell.org/ghc.git ghc-7.8
cd ghc-7.8/
sudo ./sync-all get -b ghc-7.8
7. Copy mk/build.mk.sample into mk/build.mk. Uncomment the line about quick-llvm compilation
   BuildFlavour = quick-llvm .
   Look for the line SRC_HC_OPTS = -H64m -O0 -fllvm and replace -H64m with -H32m
8. perl boot
9. sudo ./configure --with-clang=/usr/bin/clang --with-ar=/usr/bin/ar
10. Because there is a linker issue, obtain the following script that will switch between standard ld and gold:
    wget https://gist.githubusercontent.com/bgamari/9399430/raw/build-ghc-arm.sh
11. We are now ready to start compiling!
    chmod ugo+rx build-ghc-arm.sh
sudo /build-ghc-arm.sh -j6
12. sudo make install
13. ???
14. Profit!