nixpkgs/pkgs/by-name/fa/famistudio/build-native-wrapper.nix

{
  depname,
  version,
  src,
  sourceRoot,
  stdenv,
  lib,
  patches ? [ ],
  extraPostPatch ? "",
  buildInputs ? [ ],
}:

let
  rebuildscriptName =
    if stdenv.hostPlatform.isLinux then
      "build_linux"
    else if stdenv.hostPlatform.isDarwin then
      "build_macos"
    else
      throw "Don't know how to rebuild FamiStudio's vendored ${depname} for ${stdenv.hostPlatform.system}";
in
stdenv.mkDerivation {
  pname = "famistudio-nativedep-${depname}";
  inherit
    version
    src
    sourceRoot
    patches
    buildInputs
    ;

  postPatch =
    let
      libnameBase = lib.optionalString stdenv.hostPlatform.isLinux "lib" + depname;
    in
    ''
      # Use one name for build script, eases with patching
      mv ${rebuildscriptName}.sh build.sh

      # Scripts use hardcoded compilers and try to copy built libraries into FamiStudio's build tree
      # Not all scripts use the same compiler, so don't fail on replacing that
      substituteInPlace build.sh \
        --replace-fail '../../FamiStudio/' "$out/lib/" \
        --replace-quiet 'g++' "$CXX"

      # Replacing gcc via sed, would break -static-libgcc otherwise
      sed -i -e "s/^gcc/$CC/g" build.sh
    ''
    + lib.optionalString stdenv.hostPlatform.isDarwin ''
      # Darwin rebuild scripts try to make a universal2 dylib
      # - build dylib for non-hostPlatform
      # - copy built library into special directory for later packaging script
      # - join two dylibs together into a universal2 dylib
      # Remove everything we don't need
      sed -ri \
        -e '/-target ${if stdenv.hostPlatform.isx86_64 then "arm64" else "x86_64"}/d' \
        -e '/..\/..\/Setup/d' \
        build.sh

      # Replace joining multi-arch dylibs with copying dylib for target arch
      substituteInPlace build.sh \
        --replace-fail 'lipo -create -output ${libnameBase}.dylib' 'cp ${libnameBase}_${
          if stdenv.hostPlatform.isx86_64 then "x86_64" else "arm64"
        }.dylib ${libnameBase}.dylib #'
    ''
    + extraPostPatch;

  dontConfigure = true;
  dontInstall = true; # rebuild script automatically installs

  buildPhase = ''
    runHook preBuild

    mkdir -p $out/lib

    # Delete all prebuilt libraries, make sure everything is rebuilt
    find . -name '*.so' -or -name '*.dylib' -or -name '*.a' -delete

    # When calling normally, an error won't cause derivation to fail
    source ./build.sh

    runHook postBuild
  '';
}