Doctest fails to link

[dragostis]

Code runs well in a usual #[test] but fails in a doctest:

note: Undefined symbols for architecture x86_64:
  "mruby::_$LT$impl$GT$::to_bool::hb7390b50b434ef6bida", referenced from:
      main::ha42f3f275405f749gaa in rust_out.0.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

error: aborting due to previous error
thread 'mruby::MRuby_0' panicked at 'Box<Any>', src/libsyntax/diagnostic.rs:240

I'm calling to_bool method in the test on a struct called Value. The issue is here. (Don't mind the panic!.)

[alexcrichton]

Thanks for the report! Looking at the code structure I think that this is unfortunately a duplicate of rust-lang/rust#16734, so I'm going to close in favor of that.

If you mark the mruby module as pub though or reexport the Value type at the top level I think it should make this go away!

[dragostis]

Works like a charm! Thanks, @alexcrichton.