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/tools/text/gawk/default.nix

@@ -0,0 +1,77 @@
+{ lib, stdenv, fetchurl
+# TODO: links -lsigsegv but loses the reference for some reason
+, withSigsegv ? (false && stdenv.hostPlatform.system != "x86_64-cygwin"), libsigsegv
+, interactive ? false, readline
+
+/* Test suite broke on:
+       stdenv.isCygwin # XXX: `test-dup2' segfaults on Cygwin 6.1
+    || stdenv.isDarwin # XXX: `locale' segfaults
+    || stdenv.isSunOS  # XXX: `_backsmalls1' fails, locale stuff?
+    || stdenv.isFreeBSD
+*/
+, doCheck ? (interactive && stdenv.isLinux), glibcLocales ? null
+, locale ? null
+}:
+
+assert (doCheck && stdenv.isLinux) -> glibcLocales != null;
+
+stdenv.mkDerivation rec {
+  pname = "gawk" + lib.optionalString interactive "-interactive";
+  version = "5.1.1";
+
+  src = fetchurl {
+    url = "mirror://gnu/gawk/gawk-${version}.tar.xz";
+    sha256 = "18kybw47fb1sdagav7aj95r9pp09r5gm202y3ahvwjw9dqw2jxnq";
+  };
+
+  # When we do build separate interactive version, it makes sense to always include man.
+  outputs = [ "out" "info" ]
+    ++ lib.optional (!interactive) "man";
+
+  nativeBuildInputs = lib.optional (doCheck && stdenv.isLinux) glibcLocales;
+
+  buildInputs = lib.optional withSigsegv libsigsegv
+    ++ lib.optional interactive readline
+    ++ lib.optional stdenv.isDarwin locale;
+
+  configureFlags = [
+    (if withSigsegv then "--with-libsigsegv-prefix=${libsigsegv}" else "--without-libsigsegv")
+    (if interactive then "--with-readline=${readline.dev}" else "--without-readline")
+  ];
+
+  makeFlags = [
+    "AR=${stdenv.cc.targetPrefix}ar"
+  ];
+
+  inherit doCheck;
+
+  postInstall = ''
+    rm "$out"/bin/gawk-*
+    ln -s gawk.1 "''${!outputMan}"/share/man/man1/awk.1
+  '';
+
+  passthru = {
+    libsigsegv = if withSigsegv then libsigsegv else null; # for stdenv bootstrap
+  };
+
+  meta = with lib; {
+    homepage = "https://www.gnu.org/software/gawk/";
+    description = "GNU implementation of the Awk programming language";
+    longDescription = ''
+      Many computer users need to manipulate text files: extract and then
+      operate on data from parts of certain lines while discarding the rest,
+      make changes in various text files wherever certain patterns appear,
+      and so on.  To write a program to do these things in a language such as
+      C or Pascal is a time-consuming inconvenience that may take many lines
+      of code.  The job is easy with awk, especially the GNU implementation:
+      Gawk.
+
+      The awk utility interprets a special-purpose programming language that
+      makes it possible to handle many data-reformatting jobs with just a few
+      lines of code.
+    '';
+    license = licenses.gpl3Plus;
+    platforms = platforms.unix ++ platforms.windows;
+    maintainers = [ ];
+  };
+}