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/compilers/glslang/default.nix

@@ -0,0 +1,46 @@
+{ lib, stdenv
+, fetchFromGitHub
+, bison
+, cmake
+, jq
+, python3
+, spirv-headers
+, spirv-tools
+}:
+stdenv.mkDerivation rec {
+  pname = "glslang";
+  version = "1.3.211.0";
+
+  src = fetchFromGitHub {
+    owner = "KhronosGroup";
+    repo = "glslang";
+    rev = "sdk-${version}";
+    sha256 = "sha256-YLn/Mxuk6mXPGtBBgfwky5Nl1TCAW6i2g+AZLzqVz+A=";
+  };
+
+  # These get set at all-packages, keep onto them for child drvs
+  passthru = {
+    spirv-tools = spirv-tools;
+    spirv-headers = spirv-headers;
+  };
+
+  nativeBuildInputs = [ cmake python3 bison jq ];
+
+  postPatch = ''
+    cp --no-preserve=mode -r "${spirv-tools.src}" External/spirv-tools
+    ln -s "${spirv-headers.src}" External/spirv-tools/external/spirv-headers
+  '';
+
+  # This is a dirty fix for lib/cmake/SPIRVTargets.cmake:51 which includes this directory
+  postInstall = ''
+    mkdir $out/include/External
+  '';
+
+  meta = with lib; {
+    inherit (src.meta) homepage;
+    description = "Khronos reference front-end for GLSL and ESSL";
+    license = licenses.asl20;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.ralith ];
+  };
+}