This project demonstrates an issue with two C based targets depending on each other. When a C based
target (ObjCBar) depends on another C based target (ObjCFoo), currently the only way to import
public headers is using the filenames directly (#import "RWFoo.h"). I would expect that I could
import the module generated from the ObjCFoo target via @import ObjCFoo; in ObjCBar similar to
how the Swift target works (@import ObjCFoo), but the build fails.
As a secondary issue, generating an Xcode project with this fails for a different reason: modules are disabled for C and Objective-C targets in the generated Xcode project.
Steps to reproduce:
Check out this repo.
Run swift build at the root of this repo. Observe the error.
In order to fix the issue, comment out line 9 and uncomment line 13. Run swift build again.