Use of undeclared type of SectionedViewDataSourceType on iPhone4s simulator

[krymtn]

Hello I have an issue building project with iPhone4s Simulator (9.0) My project-swift language is 3.3.

- RxDataSources (1.0.4):
    - RxCocoa (~> 3.0)
    - RxSwift (~> 3.0)

I got the issue that use of undeclared type of SectionedViewDataSourceType.

That's also strange, I can build iPhone5s(9.0) Simulator.

[krymtn]

Changing the RxDataSources (in Pods) optimization level to Speed [-O] fixes the issue.