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/libraries/libepoxy/default.nix

@@ -0,0 +1,74 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, meson
+, ninja
+, pkg-config
+, utilmacros
+, python3
+, libGL
+, libX11
+, Carbon
+, OpenGL
+, x11Support ? !stdenv.isDarwin
+}:
+
+let
+  inherit (lib) getLib optional optionalString;
+
+in
+stdenv.mkDerivation rec {
+  pname = "libepoxy";
+  version = "1.5.10";
+
+  src = fetchFromGitHub {
+    owner = "anholt";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-gZiyPOW2PeTMILcPiUTqPUGRNlMM5mI1z9563v4SgEs=";
+  };
+
+  patches = [ ./libgl-path.patch ];
+
+  postPatch = ''
+    patchShebangs src/*.py
+  ''
+  + optionalString stdenv.isDarwin ''
+    substituteInPlace src/dispatch_common.h --replace "PLATFORM_HAS_GLX 0" "PLATFORM_HAS_GLX 1"
+  '';
+
+  outputs = [ "out" "dev" ];
+
+  nativeBuildInputs = [ meson ninja pkg-config utilmacros python3 ];
+
+  buildInputs = lib.optionals x11Support [
+    libGL
+    libX11
+  ] ++ lib.optionals stdenv.isDarwin [
+    Carbon
+    OpenGL
+  ];
+
+  mesonFlags = [
+    "-Dtests=${if doCheck then "true" else "false"}"
+    "-Dglx=${if x11Support then "yes" else "no"}"
+  ];
+
+  NIX_CFLAGS_COMPILE = lib.optionalString x11Support ''-DLIBGL_PATH="${getLib libGL}/lib"'';
+
+  # cgl_epoxy_api fails in darwin sandbox and on Hydra (because it's headless?)
+  preCheck = lib.optionalString stdenv.isDarwin ''
+    substituteInPlace ../test/meson.build \
+      --replace "[ 'cgl_epoxy_api', [ 'cgl_epoxy_api.c' ] ]," ""
+  '';
+
+  doCheck = true;
+
+  meta = with lib; {
+    description = "A library for handling OpenGL function pointer management";
+    homepage = "https://github.com/anholt/libepoxy";
+    license = licenses.mit;
+    maintainers = with maintainers; [ goibhniu erictapen ];
+    platforms = platforms.unix;
+  };
+}