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/rpy2/default.nix

@@ -0,0 +1,95 @@
+{ stdenv
+, lib
+, buildPythonPackage
+, fetchPypi
+, isPyPy
+, R
+, rWrapper
+, rPackages
+, pcre
+, xz
+, bzip2
+, zlib
+, icu
+, ipython
+, jinja2
+, pytz
+, pandas
+, numpy
+, cffi
+, tzlocal
+, simplegeneric
+, pytestCheckHook
+, extraRPackages ? []
+}:
+
+buildPythonPackage rec {
+    version = "3.4.5";
+    pname = "rpy2";
+
+    disabled = isPyPy;
+    src = fetchPypi {
+      inherit version pname;
+      sha256 = "5d31a5ea43f5a59f6dec30faca87edb01fc9b8affa0beae96a99be923bd7dab3";
+    };
+
+    patches = [
+      # R_LIBS_SITE is used by the nix r package to point to the installed R libraries.
+      # This patch sets R_LIBS_SITE when rpy2 is imported.
+      ./rpy2-3.x-r-libs-site.patch
+    ];
+
+    postPatch = ''
+      substituteInPlace 'rpy2/rinterface_lib/embedded.py' --replace '@NIX_R_LIBS_SITE@' "$R_LIBS_SITE"
+      substituteInPlace 'requirements.txt' --replace 'pytest' ""
+    '';
+
+    buildInputs = [
+      pcre
+      xz
+      bzip2
+      zlib
+      icu
+    ] ++ (with rPackages; [
+      # packages expected by the test framework
+      ggplot2
+      dplyr
+      RSQLite
+      broom
+      DBI
+      dbplyr
+      hexbin
+      lazyeval
+      lme4
+      tidyr
+    ]) ++ extraRPackages ++ rWrapper.recommendedPackages;
+
+    nativeBuildInputs = [
+      R # needed at setup time to detect R_HOME (alternatively set R_HOME explicitly)
+    ];
+
+    propagatedBuildInputs = [
+      ipython
+      jinja2
+      pytz
+      pandas
+      numpy
+      cffi
+      tzlocal
+      simplegeneric
+    ];
+
+    doCheck = !stdenv.isDarwin;
+
+    checkInputs = [
+      pytestCheckHook
+    ];
+
+    meta = {
+      homepage = "https://rpy2.github.io/";
+      description = "Python interface to R";
+      license = lib.licenses.gpl2Plus;
+      platforms = lib.platforms.unix;
+      maintainers = with lib.maintainers; [ joelmo ];
+    };
+  }

pkgs/development/python-modules/rpy2/rpy2-3.x-r-libs-site.patch

@@ -0,0 +1,21 @@
+diff --git a/rpy2/rinterface_lib/embedded.py b/rpy2/rinterface_lib/embedded.py
+index 1f4babbf..322363c5 100644
+--- a/rpy2/rinterface_lib/embedded.py
++++ b/rpy2/rinterface_lib/embedded.py
+@@ -118,6 +118,16 @@ def _initr(
+         if openrlib.R_HOME is None:
+             raise ValueError('openrlib.R_HOME cannot be None.')
+         os.environ['R_HOME'] = openrlib.R_HOME
++
++        # path to libraries
++        existing = os.environ.get('R_LIBS_SITE')
++        if existing is not None:
++            prefix = existing + ':'
++        else:
++            prefix = ''
++        additional = '@NIX_R_LIBS_SITE@'
++        os.environ['R_LIBS_SITE'] = prefix + additional
++
+         options_c = [ffi.new('char[]', o.encode('ASCII')) for o in _options]
+         n_options = len(options_c)
+         n_options_c = ffi.cast('int', n_options)