Pillars of Eternity on nixos

nix.sh

#!/usr/bin/env bash

read -r -d '' NIXEXPR <<EOF
with import <nixpkgs> {};
runCommand "foo" {} ''
mkdir \$out
echo "\${lib.makeLibraryPath [ mesa xorg.libX11 xorg.libXext xorg.libXcursor xorg.libXrandr pkgsi686Linux.alsaPlugins libpulseaudio stdenv.cc.cc.lib ]}" > \$out/path
cp \$NIX_CC/nix-support/dynamic-linker \$out/ld
''
EOF

f=$(nix-build -E "$NIXEXPR")
if [[ -z "$f" ]]; then
  echo "could not build nixexpr"
  exit 1
fi

exe=./game/PillarsOfEternity
patchelfPath="$(nix-build -A patchelf '<nixpkgs>')"
patchelf="$patchelfPath/bin/patchelf"
if [[ -z "$patchelfPath" ]]; then
  echo "could not build patchelf"
  exit 1
fi

oldinterpr=$($patchelf --print-interpreter "$exe")
newinterpr=$(cat "$f/ld")
if [[ "$oldinterpr" != "$newinterpr" ]]; then
    echo "patching $exe from $oldinterpr to $newinterpr"
    $patchelf --set-interpreter "$newinterpr" "$exe"
fi

LPATH=$(cat "$f/path")
env LD_LIBRARY_PATH=$LPATH bash start.sh

Put into the extracted folder and run with bash.

Will install the needed dynamic libraries, patch the linker into the binary and run it with the correct library paths.

Will this technically work with any Unity-produced Linux executable? (Changing the executable name on line 18, of course)

$NIX_CC seems empty, and I don't know why

@dpc replace runCommand with runCommandCC then it should work again.