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/guile-modules/guile-gcrypt/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, stdenv
+, fetchFromGitea
+, guile
+, libgcrypt
+, autoreconfHook
+, pkg-config
+, texinfo
+}:
+
+stdenv.mkDerivation rec {
+  pname = "guile-gcrypt";
+  version = "0.3.0";
+
+  src = fetchFromGitea {
+    domain = "notabug.org";
+    owner = "cwebber";
+    repo = "guile-gcrypt";
+    rev = "v${version}";
+    sha256 = "sha256-lAaiKBOdTFWEWsmwKgx0C67ACvtnEKUxti66dslzSVQ=";
+  };
+
+  postConfigure = ''
+    sed -i '/moddir\s*=/s%=.*%=''${out}/share/guile/site%' Makefile;
+    sed -i '/godir\s*=/s%=.*%=''${out}/share/guile/ccache%' Makefile;
+  '';
+
+  nativeBuildInputs = [
+    autoreconfHook pkg-config texinfo
+  ];
+  buildInputs = [
+    guile
+  ];
+  propagatedBuildInputs = [
+    libgcrypt
+  ];
+
+  meta = with lib; {
+    description = "Bindings to Libgcrypt for GNU Guile";
+    homepage = "https://notabug.org/cwebber/guile-gcrypt";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ ethancedwards8 ];
+    platforms = platforms.linux;
+  };
+}