Bastian
10/05/2021, 12:43 PMcinterop multiplatform dependency
into the shared.framework
for my iOS app (to make them available). The dependency uses cinterop
as it's wrapping a C library. I'm already trying to export
it via the Gradle setup (see setup in the thread). Though when building in either Xcode or AppCode, I get an error about missing symbols for architecture x86_64
and a warning that the dependency can't be exported
(see error log in the thread).
I tried fixing this by including the .def
file of the wrapping dependency and the include
folder of the C library itself and making the export transitive
. But this didn't help.
I'm using Kotlin 1.5.31.kotlin {
ios {
binaries {
framework {
baseName = "shared"
export("io.github.matrixkt:client:$matrixKtVersion")
export("io.github.matrixkt:olm:$matrixKtVersion")
}
}
compilations.getByName("main") {
val libolm by cinterops.creating {
defFile(project.file("libolm.def"))
includeDirs(projectDir.resolve("include"))
}
}
}
sourceSets {
val commonMain by getting {
dependencies {
implementation("org.jetbrains.kotlin:kotlin-stdlib-common")
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutineVersion")
implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.2.2")
implementation("io.ktor:ktor-client-core:$ktorVersion")
api("io.github.matrixkt:client:$matrixKtVersion")
api("io.github.matrixkt:olm:$matrixKtVersion") {
// android target will pick up "aar" version instead (see androidMain)
exclude(group="net.java.dev.jna", module="jna")
}
implementation("org.matrix.gitlab.matrix-org:olm:3.2.4")
}
}
val iosMain by getting {
dependencies {
implementation("io.ktor:ktor-client-ios:$ktorVersion")
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutineVersion") {
version {
strictly(coroutineVersion) // still got to enforce
}
}
}
}
}
}
> Task :shared:cinteropLibolmIosX64 UP-TO-DATE
> Task :shared:compileKotlinIosX64 UP-TO-DATE
> Task :shared:linkDebugFrameworkIosX64
w: Interop library /Users/bc/.gradle/caches/modules-2/files-2.1/io.github.matrixkt/olm-iosx64/0.1.5/7175481a6a0031fc9611b550bbcf7658d69c6d4f/olm-cinterop-libolm can't be exported with -Xexport-library
e: /Applications/Xcode-12.5.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld invocation reported errors
The /Applications/Xcode-12.5.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld command returned non-zero exit code: 1.
output:
Undefined symbols for architecture x86_64:
"_olm_sas_set_their_key", referenced from:
_colm_internal_olm_sas_set_their_key_wrapper130 in result.o
...
"_olm_outbound_group_session_message_index", referenced from:
_colm_internal_olm_outbound_group_session_message_index_wrapper30 in result.o
ld: symbol(s) not found for architecture x86_64
> Task :shared:linkDebugFrameworkIosX64 FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':shared:linkDebugFrameworkIosX64'.
> Compilation finished with errors
Package.swift
defining a target for only the C-dependency) So I could use xcodebuild
to compile the lib
• ✅ put the built library into my KM project
• ✅ link it in my binaries { framework { ... }}