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/autoconf/2.64.nix

@@ -0,0 +1,52 @@
+{ lib, stdenv, fetchurl, m4, perl }:
+
+stdenv.mkDerivation rec {
+  pname = "autoconf";
+  version = "2.64";
+
+  src = fetchurl {
+    url = "mirror://gnu/autoconf/autoconf-${version}.tar.xz";
+    sha256 = "0j3jdjpf5ly39dlp0bg70h72nzqr059k0x8iqxvaxf106chpgn9j";
+  };
+
+  buildInputs = [ m4 perl ];
+
+  # Work around a known issue in Cygwin.  See
+  # http://thread.gmane.org/gmane.comp.sysutils.autoconf.bugs/6822 for
+  # details.
+  # There are many test failures on `i386-pc-solaris2.11'.
+  #doCheck = ((!stdenv.isCygwin) && (!stdenv.isSunOS));
+  doCheck = false;
+
+  # Don't fixup "#! /bin/sh" in Autoconf, otherwise it will use the
+  # "fixed" path in generated files!
+  dontPatchShebangs = true;
+
+  enableParallelBuilding = true;
+
+  # Make the Autotest test suite run in parallel.
+  preCheck = ''
+    export TESTSUITEFLAGS="-j$NIX_BUILD_CORES"
+  '';
+
+  doInstallCheck = false; # fails
+
+  meta = {
+    homepage = "https://www.gnu.org/software/autoconf/";
+    description = "Part of the GNU Build System";
+
+    longDescription = ''
+      GNU Autoconf is an extensible package of M4 macros that produce
+      shell scripts to automatically configure software source code
+      packages.  These scripts can adapt the packages to many kinds of
+      UNIX-like systems without manual user intervention.  Autoconf
+      creates a configuration script for a package from a template
+      file that lists the operating system features that the package
+      can use, in the form of M4 macro calls.
+    '';
+
+    license = lib.licenses.gpl2Plus;
+
+    platforms = lib.platforms.all;
+  };
+}