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/cairocffi/default.nix

@@ -0,0 +1,78 @@
+# FIXME: make gdk-pixbuf dependency optional
+{ stdenv
+, buildPythonPackage
+, pythonOlder
+, fetchPypi
+, lib
+, substituteAll
+, makeFontsConf
+, freefont_ttf
+, pytest
+, glibcLocales
+, cairo
+, cffi
+, numpy
+, withXcffib ? false
+, xcffib
+, python
+, glib
+, gdk-pixbuf
+}:
+
+buildPythonPackage rec {
+  pname = "cairocffi";
+  version = "1.3.0";
+
+  disabled = pythonOlder "3.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-EIo6fLCeIDvdhQHZuq2R14bSBFYb1x6TZOizSJfEe5E=";
+  };
+
+  LC_ALL = "en_US.UTF-8";
+
+  # checkPhase require at least one 'normal' font and one 'monospace',
+  # otherwise glyph tests fails
+  FONTCONFIG_FILE = makeFontsConf {
+    fontDirectories = [ freefont_ttf ];
+  };
+
+  propagatedBuildInputs = [ cairo cffi ] ++ lib.optional withXcffib xcffib;
+  propagatedNativeBuildInputs = [ cffi ];
+
+  # pytestCheckHook does not work
+  checkInputs = [ numpy pytest glibcLocales ];
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace "pytest-runner" "" \
+      --replace "pytest-cov" "" \
+      --replace "pytest-flake8" "" \
+      --replace "pytest-isort" "" \
+      --replace "--flake8 --isort" ""
+  '';
+
+  checkPhase = ''
+    py.test $out/${python.sitePackages}
+  '';
+
+  patches = [
+    # OSError: dlopen() failed to load a library: gdk-pixbuf-2.0 / gdk-pixbuf-2.0-0
+    (substituteAll {
+      src = ./dlopen-paths.patch;
+      ext = stdenv.hostPlatform.extensions.sharedLibrary;
+      cairo = cairo.out;
+      glib = glib.out;
+      gdk_pixbuf = gdk-pixbuf.out;
+    })
+    ./fix_test_scaled_font.patch
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/SimonSapin/cairocffi";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+    description = "cffi-based cairo bindings for Python";
+  };
+}

pkgs/development/python-modules/cairocffi/dlopen-paths.patch

@@ -0,0 +1,61 @@
+Patch dlopen() to allow direct paths to all required libs
+
+This is an update of the patch submitted in
+https://github.com/NixOS/nixpkgs/commit/b13e44e094989d3a902f8c73b22e8d3c0cc7acf4
+by Alexander V. Nikolaev <avn@avnik.info>
+
+---
+ cairocffi/__init__.py | 34 ++++++++++++++++------------------
+ 1 file changed, 16 insertions(+), 18 deletions(-)
+
+diff --git a/cairocffi/__init__.py b/cairocffi/__init__.py
+index 307d58c..43c29e3 100644
+--- a/cairocffi/__init__.py
++++ b/cairocffi/__init__.py
+@@ -21,28 +21,26 @@ VERSION = __version__ = (Path(__file__).parent / 'VERSION').read_text().strip()
+ version = '1.17.2'
+ version_info = (1, 17, 2)
+
++# Use hardcoded soname, because ctypes.util use gcc/objdump which shouldn't be
++# required for runtime
++_LIBS = {
++    'cairo': '@cairo@/lib/libcairo@ext@',
++    'glib-2.0': '@glib@/lib/libglib-2.0@ext@',
++    'gobject-2.0': '@glib@/lib/libgobject-2.0@ext@',
++    'gdk_pixbuf-2.0': '@gdk_pixbuf@/lib/libgdk_pixbuf-2.0@ext@',
++}
++
+
+ def dlopen(ffi, library_names, filenames):
+     """Try various names for the same library, for different platforms."""
+-    exceptions = []
+-
+     for library_name in library_names:
+-        library_filename = find_library(library_name)
+-        if library_filename:
+-            filenames = (library_filename,) + filenames
+-        else:
+-            exceptions.append(
+-                'no library called "{}" was found'.format(library_name))
+-
+-    for filename in filenames:
+-        try:
+-            return ffi.dlopen(filename)
+-        except OSError as exception:  # pragma: no cover
+-            exceptions.append(exception)
+-
+-    error_message = '\n'.join(  # pragma: no cover
+-        str(exception) for exception in exceptions)
+-    raise OSError(error_message)  # pragma: no cover
++        path = _LIBS.get(library_name, None)
++        if path:
++            lib = ffi.dlopen(path)
++            if lib:
++                return lib
++
++    raise OSError("dlopen() failed to load a library: %s as %s" % (library_name, path))
+
+
+ cairo = dlopen(
+--
+2.19.2

pkgs/development/python-modules/cairocffi/fix_test_scaled_font.patch

@@ -0,0 +1,11 @@
+--- a/cairocffi/test_cairo.py	2016-09-01 07:52:33.303180302 +0200
++++ b/cairocffi/test_cairo.py	2016-09-01 09:06:19.595701944 +0200
+@@ -998,7 +998,7 @@
+ 
+     font = ScaledFont(ToyFontFace('monospace'))
+     _, _, _, _, x_advance_mono, y_advance = font.text_extents('i' * 10)
+-    assert x_advance_mono > x_advance
++    assert x_advance_mono >= x_advance
+     assert y_advance == 0
+     # Not much we can test:
+     # The toy font face was "materialized" into a specific backend.