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/libraries/malcontent/default.nix

@@ -0,0 +1,104 @@
+{ lib, stdenv
+, fetchFromGitLab
+, fetchpatch
+, meson
+, ninja
+, pkg-config
+, gobject-introspection
+, wrapGAppsHook
+, glib
+, coreutils
+, accountsservice
+, dbus
+, pam
+, polkit
+, glib-testing
+, python3
+, nixosTests
+}:
+
+stdenv.mkDerivation rec {
+  pname = "malcontent";
+  version = "0.10.4";
+
+  outputs = [ "bin" "out" "lib" "pam" "dev" "man" "installedTests" ];
+
+  src = fetchFromGitLab {
+    domain = "gitlab.freedesktop.org";
+    owner = "pwithnall";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-s2wQLb3tCfO3p8yYG8Nc6pu+y2TLfrmo7Ug1LgDLEdw=";
+  };
+
+  patches = [
+    # Allow installing installed tests to a separate output.
+    ./installed-tests-path.patch
+
+    # Do not build things that are part of malcontent-ui package
+    ./better-separation.patch
+  ];
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+    gobject-introspection
+    wrapGAppsHook
+  ];
+
+  buildInputs = [
+    accountsservice
+    dbus
+    pam
+    polkit
+    glib-testing
+    (python3.withPackages (pp: with pp; [
+      pygobject3
+    ]))
+  ];
+
+  propagatedBuildInputs = [
+    glib
+  ];
+
+  mesonFlags = [
+    "-Dinstalled_tests=true"
+    "-Dinstalled_test_prefix=${placeholder "installedTests"}"
+    "-Dpamlibdir=${placeholder "pam"}/lib/security"
+    "-Dui=disabled"
+  ];
+
+  postPatch = ''
+    substituteInPlace libmalcontent/tests/app-filter.c \
+      --replace "/usr/bin/true" "${coreutils}/bin/true" \
+      --replace "/bin/true" "${coreutils}/bin/true" \
+      --replace "/usr/bin/false" "${coreutils}/bin/false" \
+      --replace "/bin/false" "${coreutils}/bin/false"
+  '';
+
+  postInstall = ''
+    # `giDiscoverSelf` only picks up paths in `out` output.
+    # This needs to be in `postInstall` so that it runs before
+    # `gappsWrapperArgsHook` that runs as one of `preFixupPhases`.
+    addToSearchPath GI_TYPELIB_PATH "$lib/lib/girepository-1.0"
+  '';
+
+  passthru = {
+    tests = {
+      installedTests = nixosTests.installed-tests.malcontent;
+    };
+  };
+
+  meta = with lib; {
+    # We need to install Polkit & AccountsService data files in `out`
+    # but `buildEnv` only uses `bin` when both `bin` and `out` are present.
+    outputsToInstall = [ "bin" "out" "man" ];
+
+    description = "Parental controls library";
+    homepage = "https://gitlab.freedesktop.org/pwithnall/malcontent";
+    license = licenses.lgpl21Plus;
+    maintainers = with maintainers; [ jtojnar ];
+    platforms = platforms.unix;
+  };
+}