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/compilers/openjdk/bootstrap.nix

@@ -0,0 +1,40 @@
+{ stdenv
+, runCommand, fetchurl, zlib
+
+, version
+}:
+
+assert stdenv.hostPlatform.libc == "glibc";
+
+let
+  fetchboot = version: arch: sha256: fetchurl {
+    name = "openjdk${version}-bootstrap-${arch}-linux.tar.xz";
+    url  = "http://tarballs.nixos.org/openjdk/2018-03-31/${version}/${arch}-linux.tar.xz";
+    inherit sha256;
+  };
+
+  src = if stdenv.hostPlatform.system == "x86_64-linux" then
+    (if version == "10"    then fetchboot "10" "x86_64" "08085fsxc1qhqiv3yi38w8lrg3vm7s0m2yvnwr1c92v019806yq2"
+    else if version == "8" then fetchboot "8"  "x86_64" "18zqx6jhm3lizn9hh6ryyqc9dz3i96pwaz8f6nxfllk70qi5gvks"
+    else throw "No bootstrap jdk for version ${version}")
+  else if stdenv.hostPlatform.system == "i686-linux" then
+    (if version == "10"    then fetchboot "10" "i686" "1blb9gyzp8gfyggxvggqgpcgfcyi00ndnnskipwgdm031qva94p7"
+    else if version == "8" then fetchboot "8"  "i686" "1yx04xh8bqz7amg12d13rw5vwa008rav59mxjw1b9s6ynkvfgqq9"
+    else throw "No bootstrap for version")
+  else throw "No bootstrap jdk for system ${stdenv.hostPlatform.system}";
+
+  bootstrap = runCommand "openjdk-bootstrap" {
+    passthru.home = "${bootstrap}/lib/openjdk";
+  } ''
+    tar xvf ${src}
+    mv openjdk-bootstrap $out
+
+    LIBDIRS="$(find $out -name \*.so\* -exec dirname {} \; | sort | uniq | tr '\n' ':')"
+
+    find "$out" -type f -print0 | while IFS= read -r -d "" elf; do
+      isELF "$elf" || continue
+      patchelf --set-interpreter $(cat "${stdenv.cc}/nix-support/dynamic-linker") "$elf" || true
+      patchelf --set-rpath "${stdenv.cc.libc}/lib:${stdenv.cc.cc.lib}/lib:${zlib}/lib:$LIBDIRS" "$elf" || true
+    done
+  '';
+in bootstrap