Failed install node 6.7 and Julia 0.5

[wolfiex]

error: cannot cast from type 'union jl_typemap_t' to
      pointer type 'jl_value_t *' (aka '_jl_value_t *')
         if(val && jl_is_function(val)) filteredNames.push_back(*s);
                   ^~~~~~~~~~~~~~~~~~~
../src/Import.cpp:14:28: note: expanded from macro 'jl_is_function'
#define jl_is_function(v) ((jl_value_t*)jl_gf_mtable(v)->defs != jl_nothing)
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Using the version described in the pull request removes some of the warnings, but the program still falls over on the following error.

[wolfiex]

Downgraded to node 5.2 (which based on the documentation should work)

  CXX(target) Release/obj.target/nj/src/Import.o
../src/Import.cpp:39:20: error: use of undeclared identifier 'jl_is_function'
         if(val && jl_is_function(val)) filteredNames.push_back(*s);
                   ^
1 error generated.



npm ERR! Tell the author that this fails on your system:
npm ERR!     node-gyp rebuild