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/test/cc-wrapper/multilib.nix

@@ -0,0 +1,37 @@
+{ lib, stdenv }:
+
+stdenv.mkDerivation {
+  name = "cc-multilib-test";
+
+  # XXX: "depend" on cc-wrapper test?
+
+  # TODO: Have tests report pointer size or something; ensure they are what we asked for
+  buildCommand = ''
+    NIX_DEBUG=1 $CC -v
+    NIX_DEBUG=1 $CXX -v
+
+    printf "checking whether compiler builds valid C binaries... " >&2
+    $CC -o cc-check ${./cc-main.c}
+    ./cc-check
+
+    printf "checking whether compiler builds valid 32bit C binaries... " >&2
+    $CC -m32 -o c32-check ${./cc-main.c}
+    ./c32-check
+
+    printf "checking whether compiler builds valid 64bit C binaries... " >&2
+    $CC -m64 -o c64-check ${./cc-main.c}
+    ./c64-check
+
+    printf "checking whether compiler builds valid 32bit C++ binaries... " >&2
+    $CXX -m32 -o cxx32-check ${./cxx-main.cc}
+    ./cxx32-check
+
+    printf "checking whether compiler builds valid 64bit C++ binaries... " >&2
+    $CXX -m64 -o cxx64-check ${./cxx-main.cc}
+    ./cxx64-check
+
+    touch $out
+  '';
+
+  meta.platforms = lib.platforms.x86_64;
+}