Nix-Expression for baseflight. Run via `nix-shell baseflight.nix', then compile via `make'. Use stm32flash to upload.

baseflight.nix

{ nixpkgs ? <nixpkgs> }:
let
  pkgs = import nixpkgs { };
  stdenv = pkgs.stdenv;
  gcc-arm-none-eabi = with pkgs.pkgsi686Linux; stdenv.mkDerivation rec {
    name = "gcc-arm-none-eabi-4_7-2013q3-20130916";
  
    src = pkgs.fetchurl {
      url = "https://launchpad.net/gcc-arm-embedded/4.7/4.7-2013-q3-update/+download/${name}-linux.tar.bz2";
      sha256 = "1bd9bi9q80xn2rpy0rn1vvj70rh15kb7dmah0qs4q2rv78fqj40d";
    };

    # src = pkgs.fetchurl {
    #   url = "https://launchpad.net/gcc-arm-embedded/4.8/4.8-2013-q4-major/+download/gcc-arm-none-eabi-4_8-2013q4-20131204-linux.tar.bz2";
    #   sha256 = "1bd9bi9q80xn2rpy0rn1vvj70rh15kb7dmah0qs4q2rv78fqd40d";
    # };
  
    buildInputs = [ bzip2 patchelf ];
  
    dontPatchELF = true;
  
    phases = "unpackPhase patchPhase installPhase";
  
    installPhase = ''
      mkdir -pv $out
      mv * $out
  
      for f in $(find $out)
      do
        [ -f "$f" ] && patchelf "$f" 2> /dev/null && 
        patchelf --set-interpreter ${glibc}/lib/ld-linux.so.2 \
                 --set-rpath $out/lib:${gcc}/lib \
                   "$f" || true
      done
    '';
  };
in
stdenv.mkDerivation {
  name = "baseflight-dev";
  src = ./.;

  buildInputs = with pkgs; [
    coreutils
    gcc-arm-none-eabi
    stm32flash
  ];
}