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/applications/accessibility/dasher/default.nix

@@ -0,0 +1,70 @@
+{ stdenv
+, lib
+, fetchFromGitLab
+, autoreconfHook
+, pkg-config
+, wrapGAppsHook
+, glib
+, gtk3
+, expat
+, itstool
+, gnome-doc-utils
+, which
+, at-spi2-core
+, dbus
+, libxslt
+, libxml2
+, speechSupport ? true
+, speechd
+}:
+
+stdenv.mkDerivation {
+  pname = "dasher";
+  version = "unstable-2021-04-25";
+
+  src = fetchFromGitLab {
+    domain = "gitlab.gnome.org";
+    owner = "GNOME";
+    repo = "dasher";
+    rev = "90c753b87564fa3f42cb2d04e1eb6662dc8e0f8f";
+    sha256 = "sha256-aM05CV68pCRlhfIPyhuHWeRL+tDroB3fVsoX08OU8hY=";
+  };
+
+  prePatch = ''
+    # tries to invoke git for something, probably fetching the ref
+    echo "true" > build-aux/mkversion
+  '';
+
+  configureFlags = lib.optional (!speechSupport) "--disable-speech";
+
+  nativeBuildInputs = [
+    autoreconfHook
+    wrapGAppsHook
+    pkg-config
+    # doc generation
+    gnome-doc-utils
+    which
+    libxslt
+    libxml2
+  ];
+
+  buildInputs = [
+    glib
+    gtk3
+    expat
+    itstool
+    # at-spi2 needs dbus to be recognized by pkg-config
+    at-spi2-core
+    dbus
+  ] ++ lib.optional speechSupport speechd;
+
+  enableParallelBuilding = true;
+
+  meta = {
+    homepage = "https://www.inference.org.uk/dasher/";
+    description = "Information-efficient text-entry interface, driven by natural continuous pointing gestures";
+    license = lib.licenses.gpl2Only;
+    maintainers = [ lib.maintainers.Profpatsch ];
+    platforms = lib.platforms.all;
+  };
+}