new buildsystem has wrongish deps, specifically for libnative

[emberian]

$ make check-stage1-std NO_REBUILD=1 NO_BENCH=1

compile_and_link: x86_64-unknown-linux-gnu/stage1/test/stdtest-x86_64-unknown-linux-gnu
/home/cmr/hacking/rust3/src/libstd/lib.rs:67:14: 67:43 error: can't find crate for `native`
/home/cmr/hacking/rust3/src/libstd/lib.rs:67 #[cfg(test)] extern mod native = "native";
                                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/cmr/hacking/rust3/mk/tests.mk:364: recipe for target 'x86_64-unknown-linux-gnu/stage1/test/stdtest-x86_64-unknown-linux-gnu' failed
make: *** [x86_64-unknown-linux-gnu/stage1/test/stdtest-x86_64-unknown-linux-gnu] Error 101

cc @alexcrichton

[emberian]

not sure if actually wrong deps or if the "don't infer version" is biting us.

[emberian]

Confirmed broken after letting a make run through, so it's probably the rustpkg thing?

[pnkfelix]

cc me