Is there a current guide to creating a Kotlin nati...

# kotlin-native

[v79]

Is there a current guide to creating a Kotlin native library with gradle anywhere? https://kotlinlang.org/docs/reference/native/gradle_plugin.html makes reference to things like:

components.main {
    // Compile the component into an executable and a Kotlin/Native library.
    outputKinds = [EXECUTABLE, KLIBRARY]
}

Which we all know doesn't work, components.main is completely invalid syntax. I tried creating an empty Kotlin/Native library using Intellij's new project wizard did not add anything like outputKinds = KLIBRARY.

[Artyom Degtyarev [JB]]

This is an outdated plugin’s reference, please have a closer look at https://kotlinlang.org/docs/reference/mpp-build-native-binaries.html

[v79]

Thanks @Artyom Degtyarev [JB], I think that worked. Though I've probably found more konanc bugs 🙂. I'm definitely doing things other people aren't doing!

[v79]

So the idea is that I replace

binaries {
            executable("waveshare") {
                this.optimized = false
                entryPoint = "org.liamjd.pi.main"
            }
        }

[v79]

With

binaries {
            staticLib {
                this.optimized = false
            }
        }

[Artyom Degtyarev [JB]]

Yes, this or sharedLib , I suppose. Also, feel free to share your experience here, and file bugs at kotl.in/issue, Kotlin team is always interested in feedback.

[v79]

OK, I'll raise another bug; the code can't compile at all. I suspect it's my heavy use of UByteArray which is already causing problems.

[v79]

https://youtrack.jetbrains.com/issue/KT-43582 raised.

[Artyom Degtyarev [JB]]

Answered on youtrack with a workaround: just add this dummy function somewhere in code

fun exposeByteArray(): ByteArray =byteArrayOf(0x01, 0x00)

This should generate correct symbol for the library.
Please give it a try, and if it work for you too I think we’ll be able to mark ticket correctly, and go to the https://youtrack.jetbrains.com/issue/KT-36878 for the upvote button 😄

[v79]

Well, I have good news and I have bad news... Adding that dummy function seems to have helped; there are no errors in generating the header files. The project compiles on Linux.
But I think I've found a new bug in the compiler/linker when creating a staticLib on a Windows 10 machine (perhaps only when my Windows user name contains a space) (perhaps only when my project is on a different drive from my Windows user profile). The error does not happen on my Ubuntu VM... I'll check to see if the bug has been reported already :)

[v79]

https://youtrack.jetbrains.com/issue/KT-43624 - sorry!