I am trying to setup curl in my multiplatform project by following this guide: <https://kotlinlang.o...

# kotlin-native

[Shabinder Singh]

I am trying to setup curl in my multiplatform project by following this guide:
https://kotlinlang.org/docs/curl.html#generate-bindings

But when I try to add Interop to host targets , it doesn’t get recognised by IDE….

Any help is appreciated!

[Shabinder Singh]

I am struggling with this error: (when I don’t enable interop)

[Sebastian Sellmair [JB]]

Here is a build file that you could look into:
https://github.com/sellmair/mpp-issue-bootstrap/blob/kt-40975-i2/p2/build.gradle.kts

[Sebastian Sellmair [JB]]

https://github.com/sellmair/mpp-issue-bootstrap/blob/kt-39324-hierarchical-commonization-it-1/p1/build.gradle.kts

Maybe this branch also helps

[Shabinder Singh]

Thanks @Sebastian Sellmair [JB], I will look into those!

[Sebastian Sellmair [JB]]

And here would be a sample project for libcurl exactly, that I wrote for integration testing ☺️ 👍
https://github.com/JetBrains/kotlin/tree/master/libraries/tools/kotlin-gradle-plug[…]ation-tests/src/test/resources/testProject/commonizeCurlInterop

Ping me if you need help, or have any questions or ideas 👍

[Shabinder Singh]

@Sebastian Sellmair [JB] I enabled cInterop but now getting fatal error: 'curl/curl.h' file not found

[Sebastian Sellmair [JB]]

In those sample projects I put the header files into the repository!
You can either use headers on your machine coming from any libcurl installation, or do the same as me. For personal projects, I would also just put the headers into the repo!

[Sebastian Sellmair [JB]]

See: https://github.com/JetBrains/kotlin/tree/master/libraries/tools/kotlin-gradle-plug[…]st/resources/testProject/commonizeCurlInterop/libs/include/curl

[Shabinder Singh]

Will see, I am new to Kotlin/Native so forgive me for asking stupid questions or asking things which for you might be common sense😶🙃

[Shabinder Singh]

@Sebastian Sellmair [JB] I added the headers in repo and done required changes, CInterops Tasks Completed Successfully All targets Except linuxX64 compile successfully

But LinuxX64 still fails with error:

> Task :linkDebugTestLinuxX64
e: /Users/shabinder/.konan/dependencies/clang-llvm-apple-8.0.0-darwin-macos/bin/ld.lld invocation reported errors

The /Users/shabinder/.konan/dependencies/clang-llvm-apple-8.0.0-darwin-macos/bin/ld.lld command returned non-zero exit code: 1.
output:
ld.lld: error: unable to find library -lcurl

[Sebastian Sellmair [JB]]

What machine are you using?

[Shabinder Singh]

@Sebastian Sellmair [JB] its MacOs Bigsur
I5-9th gen

[Shabinder Singh]

@Sebastian Sellmair [JB] Just Removing LinuxX64 as a Target Solved All Build Errors!

If You want to look at a reproducer , here you go : https://github.com/Shabinder/youtube-api-dl

[Shabinder Singh]

but I want to have LinuxX64 as a target , and I get a feel that the issue is related to my Build Machine ….., if Possible,Can you @Sebastian Sellmair [JB] try building on yours if you get same error or not.

[Sebastian Sellmair [JB]]

I think the problem is that you also need the binary for linux on your machine to link against!
Do you have a curl binary on your hands for linuxx64?

[Shabinder Singh]

How do I check that? Do I have to download Curl for linux and link manually using compilerOpts/LinkerOpts?

If yes how do I do that?