setup nix

autotools.nix

pkgs: args:
  with pkgs;
  let defaultAttrs = rec {
    system = builtins.currentSystem;
    builder = "${bash}/bin/bash";
    args = [ ./builder.sh ];
    setup = ./setup.sh;
    gcc = clang;
    binutils = clang.bintools.bintools_bin;
    baseInputs = [
        gnutar
        gzip
        gnumake
        coreutils
        gawk
        gnused
        gnugrep
        binutils
        gcc
        findutils
        patchelf
      ];
    buildInputs = [];
  };
  in
  derivation ( defaultAttrs // args )

builder.sh

set -e
source $setup
genericBuild

setup.sh

unset PATH
for p in $baseInputs $buildInputs; do
  if [ -d $p/bin ]; then
    export PATH="$p/bin${PATH:+:}$PATH"
  fi
  if [ -d $p/include ]; then
    export NIX_CFLAGS_COMPILE="-I $p/include${NIX_CFLAGS_COMPILE:+ }$NIX_CFLAGS_COMPILE"
  fi
  if [ -d $p/lib ]; then
    export NIX_LDFLAGS="-rpath $p/lib -L $p/lib${NIX_LDFLAGS:+ }$NIX_LDFLAGS"
  fi
done

function unpackPhase() {
  tar -xf $src

  for d in *; do
    if [ -d "$d" ]; then
      cd "$d"
      break
    fi
  done
}

function configurePhase() {
  ./configure --prefix=$out
}

function buildPhase() {
  make
}

function installPhase() {
  make install
}

function fixupPhase() {
  find $out -type f -exec patchelf --shrink-rpath '{}' \; -exec strip '{}' \; 2>/dev/null
}

function genericBuild() {
  unpackPhase
  configurePhase
  buildPhase
  installPhase
  fixupPhase
}