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/mpi4py/default.nix

@@ -0,0 +1,51 @@
+{ lib, fetchPypi, fetchpatch, python, buildPythonPackage, mpi, openssh }:
+
+buildPythonPackage rec {
+  pname = "mpi4py";
+  version = "3.1.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-8en64QefQ+r92fgXzbP9MNcJ7cCTtdXa2lekYbLbMAg=";
+  };
+
+  passthru = {
+    inherit mpi;
+  };
+
+  postPatch = ''
+    substituteInPlace test/test_spawn.py --replace \
+                      "unittest.skipMPI('openmpi(<3.0.0)')" \
+                      "unittest.skipMPI('openmpi')"
+  '';
+
+  configurePhase = "";
+
+  installPhase = ''
+    mkdir -p "$out/lib/${python.libPrefix}/site-packages"
+    export PYTHONPATH="$out/lib/${python.libPrefix}/site-packages:$PYTHONPATH"
+
+    ${python}/bin/${python.executable} setup.py install \
+      --install-lib=$out/lib/${python.libPrefix}/site-packages \
+      --prefix="$out"
+
+    # --install-lib:
+    # sometimes packages specify where files should be installed outside the usual
+    # python lib prefix, we override that back so all infrastructure (setup hooks)
+    # work as expected
+
+    # Needed to run the tests reliably. See:
+    # https://bitbucket.org/mpi4py/mpi4py/issues/87/multiple-test-errors-with-openmpi-30
+    export OMPI_MCA_rmaps_base_oversubscribe=yes
+  '';
+
+  setupPyBuildFlags = ["--mpicc=${mpi}/bin/mpicc"];
+
+  nativeBuildInputs = [ mpi openssh ];
+
+  meta = with lib; {
+    description = "Python bindings for the Message Passing Interface standard";
+    homepage = "https://bitbucket.org/mpi4py/mpi4py/";
+    license = licenses.bsd3;
+  };
+}

pkgs/development/python-modules/mpi4py/tests.patch

@@ -0,0 +1,13 @@
+diff --git i/test/test_dl.py w/test/test_dl.py
+index a3211a3..9d25569 100644
+--- i/test/test_dl.py
++++ w/test/test_dl.py
+@@ -12,7 +12,7 @@ class TestDL(unittest.TestCase):
+         if sys.platform == 'darwin':
+             libm = 'libm.dylib'
+         else:
+-            libm = 'libm.so'
++            libm = 'libm.so.6'
+ 
+         handle = dl.dlopen(libm, dl.RTLD_LOCAL|dl.RTLD_LAZY)
+         self.assertTrue(handle != 0)