uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/tools/build-managers/build2/default.nix

@@ -0,0 +1,99 @@
+{ stdenv, lib
+, build2
+, fetchurl
+, fixDarwinDylibNames
+, libbutl
+, libpkgconf
+, enableShared ? !stdenv.hostPlatform.isStatic
+, enableStatic ? !enableShared
+}:
+let
+  configSharedStatic = enableShared: enableStatic:
+    if enableShared && enableStatic then "both"
+    else if enableShared then "shared"
+    else if enableStatic then "static"
+    else throw "neither shared nor static libraries requested";
+in
+stdenv.mkDerivation rec {
+  pname = "build2";
+  version = "0.14.0";
+
+  outputs = [ "out" "dev" "doc" "man" ];
+
+  setupHook = ./setup-hook.sh;
+
+  src = fetchurl {
+    url = "https://pkg.cppget.org/1/alpha/build2/build2-${version}.tar.gz";
+    sha256 = "sha256-/pWj68JmBthOJ2CTQHo9Ww3MCv4xBOw0SusJpMfX5Y8=";
+  };
+
+  patches = [
+    # Remove any build/host config entries which refer to nix store paths
+    ./remove-config-store-paths.patch
+    # Pick up sysdirs from NIX_LDFLAGS
+    ./nix-ldflags-sysdirs.patch
+  ];
+
+  strictDeps = true;
+  nativeBuildInputs = [
+    build2
+  ];
+  disallowedReferences = [
+    build2
+    libbutl.dev
+    libpkgconf.dev
+  ];
+  buildInputs = [
+    libbutl
+    libpkgconf
+  ];
+
+  # Build2 uses @rpath on darwin
+  # https://github.com/build2/build2/issues/166
+  # N.B. this only adjusts the install_name after all libraries are installed;
+  # packages containing multiple interdependent libraries may have
+  # LC_LOAD_DYLIB entries containing @rpath, requiring manual fixup
+  propagatedBuildInputs = lib.optionals stdenv.targetPlatform.isDarwin [
+    fixDarwinDylibNames
+  ];
+
+  postPatch = ''
+    patchShebangs --build tests/bash/testscript
+  '';
+
+  build2ConfigureFlags = [
+    "config.bin.lib=${configSharedStatic enableShared enableStatic}"
+    "config.cc.poptions+=-I${lib.getDev libpkgconf}/include/pkgconf"
+  ];
+
+  postInstall = lib.optionalString stdenv.isDarwin ''
+    install_name_tool -add_rpath "''${!outputLib}/lib" "''${!outputBin}/bin/b"
+  '';
+
+  passthru = {
+    bootstrap = build2;
+    inherit configSharedStatic;
+  };
+
+  meta = with lib; {
+    homepage = "https://www.build2.org/";
+    description = "build2 build system";
+    license = licenses.mit;
+    longDescription = ''
+      build2 is an open source (MIT), cross-platform build toolchain
+      that aims to approximate Rust Cargo's convenience for developing
+      and packaging C/C++ projects while providing more depth and
+      flexibility, especially in the build system.
+
+      build2 is a hierarchy of tools consisting of a general-purpose
+      build system, package manager (for package consumption), and
+      project manager (for project development). It is primarily aimed
+      at C/C++ projects as well as mixed-language projects involving
+      one of these languages (see bash and rust modules, for example).
+    '';
+    changelog = "https://git.build2.org/cgit/build2/tree/NEWS";
+    platforms = platforms.all;
+    maintainers = with maintainers; [ hiro98 r-burns ];
+    mainProgram = "b";
+  };
+}