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/python-modules/pysdl2/PySDL2-dll.patch

@@ -0,0 +1,127 @@
+diff --git a/sdl2/dll.py b/sdl2/dll.py
+index 6e30259..12e1f7d 100644
+--- a/sdl2/dll.py
++++ b/sdl2/dll.py
+@@ -145,7 +145,7 @@ class DLL(object):
+     """Function wrapper around the different DLL functions. Do not use or
+     instantiate this one directly from your user code.
+     """
+-    def __init__(self, libinfo, libnames, path=None):
++    def __init__(self, libinfo, libfile):
+         self._dll = None
+         self._deps = None
+         self._libname = libinfo
+@@ -157,11 +157,12 @@ class DLL(object):
+             "SDL2_image": 2001,
+             "SDL2_gfx": 1003
+         }
+-        foundlibs = _findlib(libnames, path)
+-        dllmsg = "PYSDL2_DLL_PATH: %s" % (os.getenv("PYSDL2_DLL_PATH") or "unset")
+-        if len(foundlibs) == 0:
+-            raise RuntimeError("could not find any library for %s (%s)" %
+-                               (libinfo, dllmsg))
++        #foundlibs = _findlib(libnames, path)
++        #dllmsg = "PYSDL2_DLL_PATH: %s" % (os.getenv("PYSDL2_DLL_PATH") or "unset")
++        #if len(foundlibs) == 0:
++        #    raise RuntimeError("could not find any library for %s (%s)" %
++        #                       (libinfo, dllmsg))
++        foundlibs = [ libfile ]
+         for libfile in foundlibs:
+             try:
+                 self._dll = CDLL(libfile)
+@@ -185,19 +186,19 @@ class DLL(object):
+                                (foundlibs, libinfo))
+         if _using_ms_store_python():
+             self._deps = _preload_deps(libinfo, self._libfile)
+-        if path is not None and sys.platform in ("win32",) and \
+-            path in self._libfile:
+-            os.environ["PATH"] = "%s;%s" % (path, os.environ["PATH"])
++        #if path is not None and sys.platform in ("win32",) and \
++        #    path in self._libfile:
++        #    os.environ["PATH"] = "%s;%s" % (path, os.environ["PATH"])
+ 
+     def bind_function(self, funcname, args=None, returns=None, added=None):
+         """Binds the passed argument and return value types to the specified
+         function. If the version of the loaded library is older than the
+         version where the function was added, an informative exception will
+         be raised if the bound function is called.
+         
+         Args:
+             funcname (str): The name of the function to bind.
+             args (List or None, optional): The data types of the C function's 
+                 arguments. Should be 'None' if function takes no arguments.
+             returns (optional): The return type of the bound C function. Should
+                 be 'None' if function returns 'void'.
+@@ -288,7 +289,7 @@ def nullfunc(*args):
+     return
+ 
+ try:
+-    dll = DLL("SDL2", ["SDL2", "SDL2-2.0", "SDL2-2.0.0"], os.getenv("PYSDL2_DLL_PATH"))
++    dll = DLL("SDL2", "@sdl2@")
+ except RuntimeError as exc:
+     raise ImportError(exc)
+ 
+diff --git a/sdl2/sdlgfx.py b/sdl2/sdlgfx.py
+index 090752e..a8a7488 100644
+--- a/sdl2/sdlgfx.py
++++ b/sdl2/sdlgfx.py
+@@ -50,8 +50,7 @@ __all__ = [
+ 
+ 
+ try:
+-    dll = DLL("SDL2_gfx", ["SDL2_gfx", "SDL2_gfx-1.0"],
+-              os.getenv("PYSDL2_DLL_PATH"))
++    dll = DLL("SDL2_gfx", "@sdl2_gfx@")
+ except RuntimeError as exc:
+     raise ImportError(exc)
+ 
+diff --git a/sdl2/sdlimage.py b/sdl2/sdlimage.py
+index a6884e8..95d96df 100644
+--- a/sdl2/sdlimage.py
++++ b/sdl2/sdlimage.py
+@@ -32,15 +32,14 @@ __all__ = [
+     "IMG_LoadXCF_RW", "IMG_LoadWEBP_RW", "IMG_LoadXPM_RW",
+     "IMG_LoadXV_RW", "IMG_ReadXPMFromArray",
+     "IMG_GetError", "IMG_SetError", "IMG_SaveJPG", "IMG_SaveJPG_RW",
+-    
++
+     # Python Functions
+     "get_dll_file"
+ ]
+ 
+ 
+ try:
+-    dll = DLL("SDL2_image", ["SDL2_image", "SDL2_image-2.0"],
+-              os.getenv("PYSDL2_DLL_PATH"))
++    dll = DLL("SDL2_image", "@sdl2_image@")
+ except RuntimeError as exc:
+     raise ImportError(exc)
+ 
+diff --git a/sdl2/sdlmixer.py b/sdl2/sdlmixer.py
+index 9ad9b85..1c36289 100644
+--- a/sdl2/sdlmixer.py
++++ b/sdl2/sdlmixer.py
+@@ -76,8 +76,7 @@ __all__ = [
+ ]
+ 
+ try:
+-    dll = DLL("SDL2_mixer", ["SDL2_mixer", "SDL2_mixer-2.0"],
+-              os.getenv("PYSDL2_DLL_PATH"))
++    dll = DLL("SDL2_mixer", "@sdl2_mixer@")
+ except RuntimeError as exc:
+     raise ImportError(exc)
+ 
+diff --git a/sdl2/sdlttf.py b/sdl2/sdlttf.py
+index 9c2d951..bd5a16a 100644
+--- a/sdl2/sdlttf.py
++++ b/sdl2/sdlttf.py
+@@ -54,8 +54,7 @@ __all__ = [
+ 
+ 
+ try:
+-    dll = DLL("SDL2_ttf", ["SDL2_ttf", "SDL2_ttf-2.0"],
+-              os.getenv("PYSDL2_DLL_PATH"))
++    dll = DLL("SDL2_ttf", "@sdl2_ttf@")
+ except RuntimeError as exc:
+     raise ImportError(exc)
+ 

pkgs/development/python-modules/pysdl2/default.nix

@@ -0,0 +1,40 @@
+{ stdenv, lib, substituteAll, fetchPypi, buildPythonPackage, SDL2, SDL2_ttf, SDL2_image, SDL2_gfx, SDL2_mixer }:
+
+buildPythonPackage rec {
+  pname = "PySDL2";
+  version = "0.9.11";
+  # The tests use OpenGL using find_library, which would have to be
+  # patched; also they seem to actually open X windows and test stuff
+  # like "screensaver disabling", which would have to be cleverly
+  # sandboxed. Disable for now.
+  doCheck = false;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "93e51057d39fd583b80001d42b21d5a3f71e30d489d85924d944b2c7350e2da6";
+  };
+
+  # Deliberately not in propagated build inputs; users can decide
+  # which library they want to include.
+  buildInputs = [ SDL2_ttf SDL2_image SDL2_gfx SDL2_mixer ];
+  propagatedBuildInputs = [ SDL2 ];
+  patches = [
+    (substituteAll ({
+      src = ./PySDL2-dll.patch;
+    } // builtins.mapAttrs (_: pkg: "${pkg}/lib/lib${pkg.pname}${stdenv.hostPlatform.extensions.sharedLibrary}") {
+      # substituteAll keys must start lowercase
+      sdl2 = SDL2;
+      sdl2_ttf = SDL2_ttf;
+      sdl2_image = SDL2_image;
+      sdl2_gfx = SDL2_gfx;
+      sdl2_mixer = SDL2_mixer;
+    }))
+  ];
+
+  meta = {
+    description = "A wrapper around the SDL2 library and as such similar to the discontinued PySDL project";
+    homepage = "https://github.com/marcusva/py-sdl2";
+    license = lib.licenses.publicDomain;
+    maintainers = with lib.maintainers; [ pmiddend ];
+  };
+}