I am working with cinterops on my M1 Mac. I am wri...

# kotlin-native

[Tim Ortel]

I am working with cinterops on my M1 Mac. I am writing my .def file, but the compilation fails with: All supported Xcode versions should support objc_fixed_enum.

The line triggering this error is in one of the header files I am using, GPBBootstrap.h from Objective-C Protobuf:

#if !__has_feature(objc_fixed_enum)
 #error All supported Xcode versions should support objc_fixed_enum.
#endif

Can I enable this support in my .def file? Sorry if this is not the right place to ask this question.

[Landry Norris]

What XCode versions does the library have support for?

[Tim Ortel]

• According to their Github Page: Xcode 10.3 (or later).

[Tim Ortel]

Its this line in this file: https://github.com/protocolbuffers/protobuf/blob/main/objectivec/GPBBootstrap.h#L44

[Tim Ortel]

I was wondering, if I maybe have to add some kind of argument to the compileOptions in the .def file.

[Landry Norris]

I wonder if this is because cinterop uses a separate toolchain that provides a raw compiler (at least for C/C++). I wonder if it doesn’t use xcodebuild for Objective-C?