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/networking/pdsh/default.nix

@@ -0,0 +1,47 @@
+{ lib, stdenv, fetchurl, perl, readline, rsh, ssh, slurm, slurmSupport ? false }:
+
+stdenv.mkDerivation rec {
+  pname = "pdsh";
+  version = "2.34";
+
+  src = fetchurl {
+    url = "https://github.com/chaos/pdsh/releases/download/pdsh-${version}/pdsh-${version}.tar.gz";
+    sha256 = "1s91hmhrz7rfb6h3l5k97s393rcm1ww3svp8dx5z8vkkc933wyxl";
+  };
+
+  buildInputs = [ perl readline ssh ]
+    ++ (lib.optional slurmSupport slurm);
+
+  preConfigure = ''
+    configureFlagsArray=(
+      "--infodir=$out/share/info"
+      "--mandir=$out/share/man"
+      "--with-machines=/etc/pdsh/machines"
+      ${if readline == null then "--without-readline" else "--with-readline"}
+      ${if ssh == null then "--without-ssh" else "--with-ssh"}
+      ${if rsh == false then "--without-rsh" else "--with-rsh"}
+      ${if slurmSupport then "--with-slurm" else "--without-slurm"}
+      "--with-dshgroups"
+      "--with-xcpu"
+      "--disable-debug"
+      '--with-rcmd-rank-list=ssh,krb4,exec,xcpu,rsh'
+    )
+  '';
+
+  meta = {
+    homepage = "https://github.com/chaos/pdsh";
+    description = "High-performance, parallel remote shell utility";
+    license = lib.licenses.gpl2;
+
+    longDescription = ''
+      Pdsh is a high-performance, parallel remote shell utility. It has
+      built-in, thread-safe clients for Berkeley and Kerberos V4 rsh and
+      can call SSH externally (though with reduced performance). Pdsh
+      uses a "sliding window" parallel algorithm to conserve socket
+      resources on the initiating node and to allow progress to continue
+      while timeouts occur on some connections.
+    '';
+
+    platforms = lib.platforms.unix;
+  };
+}