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/os-specific/linux/dmtcp/default.nix

@@ -0,0 +1,48 @@
+{ lib, stdenv, fetchFromGitHub, bash, perl, python3 }:
+
+stdenv.mkDerivation rec {
+  pname = "dmtcp";
+  version = "unstable-2022-02-28";
+
+  src = fetchFromGitHub {
+    owner = pname;
+    repo = pname;
+    rev = "133687764c6742906006a1d247e3b83cd860fa1d";
+    hash = "sha256-9Vr8IhoeATCfyt7Lp7kYe/7e87mFX9KMNGTqxJgIztE=";
+  };
+
+  dontDisableStatic = true;
+
+  patches = [ ./ld-linux-so-buffer-size.patch ];
+
+  postPatch = ''
+    patchShebangs .
+
+    substituteInPlace configure \
+      --replace '#define ELF_INTERPRETER "$interp"' \
+                "#define ELF_INTERPRETER \"$(cat $NIX_CC/nix-support/dynamic-linker)\""
+    substituteInPlace src/restartscript.cpp \
+      --replace /bin/bash ${stdenv.shell}
+    substituteInPlace util/dmtcp_restart_wrapper.sh \
+      --replace /bin/bash ${stdenv.shell}
+    substituteInPlace test/autotest.py \
+      --replace /bin/bash ${bash}/bin/bash \
+      --replace /usr/bin/perl ${perl}/bin/perl \
+      --replace /usr/bin/python ${python3.interpreter} \
+      --replace "os.environ['USER']" "\"nixbld1\"" \
+      --replace "os.getenv('USER')" "\"nixbld1\""
+  '';
+
+  meta = with lib; {
+    description = "Distributed MultiThreaded Checkpointing";
+    longDescription = ''
+      DMTCP (Distributed MultiThreaded Checkpointing) is a tool to
+      transparently checkpointing the state of an arbitrary group of
+      programs spread across many machines and connected by sockets. It does
+      not modify the user's program or the operating system.
+    '';
+    homepage = "http://dmtcp.sourceforge.net/";
+    license = licenses.lgpl3Plus; # most files seem this or LGPL-2.1+
+    platforms = intersectLists platforms.linux platforms.x86; # broken on ARM and Darwin
+  };
+}