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/guile/g-wrap/default.nix

@@ -0,0 +1,34 @@
+{ fetchurl, lib, stdenv, guile, guile-lib, libffi, pkg-config, glib }:
+
+stdenv.mkDerivation rec {
+  pname = "g-wrap";
+  version = "1.9.15";
+
+  src = fetchurl {
+    url = "mirror://savannah/${pname}/${pname}-${version}.tar.gz";
+    sha256 = "0ak0bha37dfpj9kmyw1r8fj8nva639aw5xr66wr5gd3l1rqf5xhg";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+
+  # Note: Glib support is optional, but it's quite useful (e.g., it's used by
+  # Guile-GNOME).
+  buildInputs = [ guile glib guile-lib ];
+
+  propagatedBuildInputs = [ libffi ];
+
+  doCheck = true;
+
+  meta = with lib; {
+    description = "A wrapper generator for Guile";
+    longDescription = ''
+      G-Wrap is a tool (and Guile library) for generating function wrappers for
+      inter-language calls.  It currently only supports generating Guile
+      wrappers for C functions.
+    '';
+    homepage = "https://www.nongnu.org/g-wrap/";
+    license = licenses.lgpl2Plus;
+    maintainers = with maintainers; [ vyp ];
+    platforms = platforms.linux;
+  };
+}

pkgs/development/tools/guile/guile-lint/default.nix

@@ -0,0 +1,30 @@
+{ lib, stdenv, fetchurl, guile }:
+
+stdenv.mkDerivation rec {
+  pname = "guile-lint";
+  version = "14";
+
+  src = fetchurl {
+    url = "https://download.tuxfamily.org/user42/${pname}-${version}.tar.bz2";
+    sha256 = "1gnhnmki05pkmzpbfc07vmb2iwza6vhy75y03bw2x2rk4fkggz2v";
+  };
+
+  buildInputs = [ guile ];
+
+  unpackPhase = ''tar xjvf "$src" && sourceRoot="$PWD/${pname}-${version}"'';
+
+  prePatch = ''
+    substituteInPlace guile-lint.in --replace \
+      "exec guile" "exec ${guile}/bin/guile"
+  '';
+
+  doCheck = !stdenv.isDarwin;
+
+  meta = with lib; {
+    description = "Checks syntax and semantics in a Guile program or module";
+    homepage = "https://user42.tuxfamily.org/guile-lint/index.html";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ vyp ];
+    platforms = platforms.all;
+  };
+}