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/texi2html/default.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, fetchurl, perl, gettext, buildPackages }:
+
+stdenv.mkDerivation rec {
+  pname = "texi2html";
+  version = "5.0";
+
+  src = fetchurl {
+    url = "mirror://savannah/texi2html/${pname}-${version}.tar.bz2";
+    sha256 = "1yprv64vrlcbksqv25asplnjg07mbq38lfclp1m5lj8cw878pag8";
+  };
+
+  strictDeps = true;
+
+  nativeBuildInputs = [ gettext perl ];
+  buildInputs = [ perl ];
+
+  postPatch = ''
+    patchShebangs separated_to_hash.pl
+  '';
+
+  postInstall = lib.optionalString (stdenv.buildPlatform != stdenv.hostPlatform) ''
+    for f in $out/bin/*; do
+      substituteInPlace $f --replace "${buildPackages.perl}" "${perl}"
+    done
+  '';
+
+  meta = with lib; {
+    description = "Perl script which converts Texinfo source files to HTML output";
+    homepage = "https://www.nongnu.org/texi2html/";
+    license = licenses.gpl2;
+    maintainers = [ maintainers.marcweber ];
+    platforms = platforms.unix;
+  };
+}