How to add cinterop to a common module like for ex...

# multiplatform

[Animesh Sahu]

How to add cinterop to a common module like for example linux common module?

val linuxSettings: org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget.() -> Unit = {
        val main by compilations.getting

        main.cinterops.create("x11") { defFile("src/linuxCommonMain/cinterop/cinterop.def") }
    }
    linuxX64(configure = linuxSettings)
    linuxArm64(configure = linuxSettings)
    linuxArm32Hfp(configure = linuxSettings)

Does not work 🤐 The package is inaccessible from

val linuxCommonMain by sourceSets.creating { dependsOn(commonMain) }  <<----
val linuxX64Main by sourceSets.getting { dependsOn(linuxCommonMain) }
val linuxArm64Main by sourceSets.getting { dependsOn(linuxCommonMain) }
val linuxArm32HfpMain by sourceSets.getting { dependsOn(linuxCommonMain) }

I do have

kotlin.mpp.enableGranularSourceSetsMetadata=true
kotlin.native.enableDependencyPropagation=false

in gradle.properites, and platform.posix works, so I guess cinterop should've been considered 🤔 But its not blob thinking upside down

[msink]

Will be in 1.5.20: https://kotlinlang.slack.com/archives/C3SGXARS6/p1617234235095800?thread_ts=1617202454.083900&cid=C3SGXARS6

[Animesh Sahu]

1.5.20 milestone isn't reached right? Any current workaround, probably pointing same directory to both targets?

[msink]

Just googled, didn't try: https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-compiler/1.5.20-M1-65

[Animesh Sahu]

https://plugins.gradle.org/plugin/org.jetbrains.kotlin.multiplatform There's no plugin with 1.5.20 in the gradle portal, yet I see them in mvnrepo https://mvnrepository.com/artifact/org.jetbrains.kotlin.multiplatform/org.jetbrains.kotlin.multiplatform.gradle.plugin?repo=space-kotlin-bootstrap blob thinking fast

[Animesh Sahu]

I guess old buildscript syntax gonna work, lets try that out

[Animesh Sahu]

Adding this maven repo works https://maven.pkg.jetbrains.space/kotlin/p/kotlin/bootstrap

// settings.gradle.kts
pluginManagement {
    repositories {
        gradlePluginPortal()
        maven("<https://maven.pkg.jetbrains.space/kotlin/p/kotlin/bootstrap>")
    }
}

[msink]

So finally - does it work for you?
My attempt failed - https://github.com/msink/kotlin-libui/commit/705f12a24973c22ce06cca3c5371995a1fcd32dc
Result - https://github.com/msink/kotlin-libui/runs/2544545675

Here commonizer did run successfully:

Task :libui:commonizeNativeDistribution

Kotlin KLIB commonizer: Please wait while preparing libraries.
[Step 1 of 1] Preparing commonized Kotlin/Native libraries for targets [mingw_x64], [mingw_x86] (14 items)
  * Resolved libraries to be commonized in 79ms
  * Build cir tree for [mingw_x64, mingw_x86] in 10s 301ms
  * Commonized declarations for [mingw_x64, mingw_x86] in 1s 537ms
  * Written libraries for [mingw_x64(*), mingw_x86] in 5s 358ms
  * Written libraries for [mingw_x64, mingw_x86(*)] in 4s 707ms
  * Written libraries for [mingw_x64, mingw_x86] in 5s 86ms
  * Commonized target [mingw_x64, mingw_x86] in 1ms
  TOTAL: 27s 71ms
[Step 1 of 1] Preparing commonized Kotlin/Native libraries for targets [mingw_x64], [mingw_x86] (14 items): Done

But compilation failed:

> Task :libui:compileNativeMainKotlinMetadata FAILED
w: library included more than once: C:\Users\runneradmin\.konan\kotlin-native-prebuilt-windows-1.5.20-dev-5613\klib\common\stdlib
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\control.kt: (15, 32): Unresolved reference: uiControl
 ...

[Animesh Sahu]

I haven't actually tried it out 😅 A js issue regarding interface export in 1.5.x was blocking me, so was busy finding a fix for that first.

[msink]

Heh, searched in tests in kotlin repo - here are two new switches in gradle.properties:
kotlin.mpp.enableCInteropCommonization=true
kotlin.mpp.enableHierarchicalCommonization=true

[msink]

After adding - build still fails, but differently:

> Task :libui:compileNativeMainKotlinMetadata FAILED
w: library included more than once: C:\Users\runneradmin\.konan\kotlin-native-prebuilt-windows-1.5.20-dev-5613\klib\common\stdlib
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (366, 34): Unresolved reference: tm
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (369, 34): Unresolved reference: tm
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (372, 16): Unresolved reference: time_t
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (374, 28): Unresolved reference: tm
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (376, 13): Unresolved reference: mktime
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (379, 30): Unresolved reference: time_tVar
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (380, 18): Variable expected
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (381, 22): Unresolved reference: localtime
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (386, 24): Unresolved reference: tm
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\widgets.kt: (389, 23): The integer literal does not conform to the expected type size_t
e: D:\a\kotlin-libui\kotlin-libui\libui\src\nativeMain\kotlin\window.kt: (134, 41): Unresolved reference: time

[msink]

Now it doesn't resolve platform.posix.*

[Animesh Sahu]

w: library included more than once: C:\Users\runneradmin\.konan\kotlin-native-prebuilt-windows-1.5.20-dev-5613\klib\common\stdlib

One evidence, its probably broken in some ways 👀

[Animesh Sahu]

There's a ticket already saying affected version 1.5.20 actually https://youtrack.jetbrains.com/issue/KT-46257