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/tools/misc/cvise/default.nix

@@ -0,0 +1,52 @@
+{ lib, buildPythonApplication, fetchFromGitHub, bash, cmake, flex
+, libclang, llvm, unifdef
+, chardet, pebble, psutil, pytestCheckHook, pytest-flake8
+}:
+
+buildPythonApplication rec {
+  pname = "cvise";
+  version = "2.4.0";
+
+  src = fetchFromGitHub {
+    owner = "marxin";
+    repo = "cvise";
+    rev = "v${version}";
+    sha256 = "0cfzikkhp91hjgxjk3izzczb8d9p8v9zsfyk6iklk92n5qf1aakq";
+  };
+
+  patches = [
+    # Refer to unifdef by absolute path.
+    ./unifdef.patch
+  ];
+
+  nativeBuildInputs = [ cmake flex llvm.dev ];
+  buildInputs = [ bash libclang llvm llvm.dev unifdef ];
+  propagatedBuildInputs = [ chardet pebble psutil ];
+  checkInputs = [ pytestCheckHook pytest-flake8 unifdef ];
+
+  # 'cvise --command=...' generates a script with hardcoded shebang.
+  postPatch = ''
+    substituteInPlace cvise.py \
+      --replace "#!/bin/bash" "#!${bash}/bin/bash"
+  '';
+
+  preCheck = ''
+    patchShebangs cvise.py
+  '';
+  disabledTests = [
+    # Needs gcc, fails when run noninteractively (without tty).
+    "test_simple_reduction"
+  ];
+
+  dontUsePipInstall = true;
+  dontUseSetuptoolsBuild = true;
+  dontUseSetuptoolsCheck = true;
+
+  meta = with lib; {
+    homepage = "https://github.com/marxin/cvise";
+    description = "Super-parallel Python port of C-Reduce";
+    license = licenses.ncsa;
+    maintainers = with maintainers; [ orivej ];
+    platforms = platforms.linux;
+  };
+}

pkgs/development/tools/misc/cvise/unifdef.patch

@@ -0,0 +1,8 @@
+--- a/cvise.py
++++ b/cvise.py
+@@ -93,4 +93,5 @@ def find_external_programs():
+     # Special case for clang-format
+     programs['clang-format'] = '@CLANG_FORMAT_PATH@'
++    programs['unifdef'] = '@UNIFDEF@'
+ 
+     return programs