Building an iOS Application fails when using cinterop about compose-multiplatform

[mazunin-v-jb]

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[paxbun]

@wooram-yang I know it's closed, but you're not compiling and linking Sampleinterop.c. You must compile it into a .a file (using Clang or any other equivalent C toolchain) and put it into cinterop like the following.

headers = Samplecinterop.h
staticLibraries = libsamplecinterop.a

The package property in cinterop .def files means the Kotlin package name of the generated .klib file.

To automate that, you can make a C compiling task and make tasks.named(cinterop.interopProcessingTaskName) depend on that task. This just briefly explains how to do it, so you have to implement your own tasks and carefully set dependencies between the tasks.

kotlin.targets.withType(KotlinNativeTarget::class) {
  val cCompilingTask = tasks.register("compileCFor{name}") {
    doLast {
      project.exec {
        commandArgs("clang", "-c", "samplecinterop.c", "-o", "samplecinterop.o")
      }
      project.exec {
        commandArgs("ar", "r", "libsamplecinterop.a", "samplecinterop.o")
      }
    }
  }
  compilation.getByName("main") {
    cinterops.register("your cinterop name") {
      tasks.named(interopProcessingTaskName).dependsOn(cCompilingTask)
    }
  }
}

If you think authoring custom tasks is too much for your use case, I suggest you just to embed the function definitions to the header with static inline. You can see an example in here.