Compiler warning when using an a project using Elixir 1.11

[bowmanmike]

Running mix compile in a project using Elixir 1.11 causes a compiler error which originates in ex_machina. The ExMachina.Strategy.__using__ macro has a function call without parentheses. The trouble is that even when running mix compile --warnings-as-errors --no-deps-check, the compilation still fails. I assume this is because the use ExMachina.Strategy call compiles that function into our own code, so the compiler thinks that error is coming from our code, rather than a library.

Edit screenshot

[germsvel]

Thanks for opening this issue @bowmanmike! If you're up for it, I'd love a PR for this. Otherwise, I'll try to get to Elixir 1.11 warnings and issues sometime this or next week.

[bowmanmike]

Thanks for the quick reply @germsvel! I'll see if I can get to it sometime this week.

[crbelaus]

I've experienced this problem myself so I've created a merge request to fix it.