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/pygmt/default.nix

@@ -0,0 +1,54 @@
+{ lib, stdenv
+, pythonOlder
+, buildPythonPackage
+, fetchFromGitHub
+, setuptools-scm
+, gmt
+, numpy
+, netcdf4
+, pandas
+, packaging
+, xarray
+, pytest-mpl
+, ipython
+, ghostscript
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "pygmt";
+  version = "0.6.0";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "GenericMappingTools";
+    repo = "pygmt";
+    rev = "v${version}";
+    sha256 = "sha256-QzqQKnANReSHIsDbiKSZ1ZgMgbj3NAfq4bmRQktnRjQ=";
+  };
+
+  postPatch = ''
+    substituteInPlace pygmt/clib/loading.py \
+      --replace "env.get(\"GMT_LIBRARY_PATH\", \"\")" "env.get(\"GMT_LIBRARY_PATH\", \"${gmt}/lib\")"
+  '';
+
+  nativeBuildInputs = [ setuptools-scm ];
+  propagatedBuildInputs = [ numpy netcdf4 pandas packaging xarray ];
+
+  doCheck = false; # the *entire* test suite requires network access
+  checkInputs = [ pytestCheckHook pytest-mpl ghostscript ipython ];
+  postBuild = ''
+    export HOME=$TMP
+  '';
+  pythonImportsCheck = [ "pygmt" ];
+
+  meta = with lib; {
+    description = "A Python interface for the Generic Mapping Tools";
+    homepage = "https://github.com/GenericMappingTools/pygmt";
+    license = licenses.bsd3;
+    # pygmt.exceptions.GMTCLibNotFoundError: Error loading the GMT shared library '/nix/store/r3xnnqgl89vrnq0kzxx0bmjwzks45mz8-gmt-6.1.1/lib/libgmt.dylib'
+    broken = stdenv.isDarwin;
+    maintainers = with maintainers; [ sikmir ];
+  };
+}