I'm not sure what I'm missing but I can't seem to use outside libraries in kotlin native. I also can...

# kotlin-native

[RayeW47]

I'm not sure what I'm missing but I can't seem to use outside libraries in kotlin native. I also can't find any gradle documentation that would let me use that, nor any examples that use kotlin gradle scripts to interop with an outside library.

[Malcolm Still]

C libraries?

[RayeW47]

Yes, specifically ncurses. Not sure what exactly to put in the gradle script. CLion has me using kotlin gradle scripts and won't let me use the regular gradle scripts that all the examples ive seen use. There's not much documentation on kotlin gradle scripts for me to find any information to help me.

[msink]

https://kotlinlang.org/docs/reference/building-mpp-with-gradle.html#cinterop-support

[Dmitry Kandalov]

I agree that documentation for build scripts is sparse and somewhat confusing at the moment. For example, MPP CInterop support link by Mike uses defFile(project.file("def-file.def")) which is not used by any examples in kotlin/native samples folder.

[Dmitry Kandalov]

@RayeW47 I created a simple interop file with just headers = ncurses.h and used cinterop command to check the kotlin code produced from the header (on OSX). It seems that from around K/N version 1.1.2 cinterop stopped generating code for ncurses. I suspect this is some kind of optmisation probably because ncurses on system path is already bundled with K/N on osx in platform.darwin.

[Dmitry Kandalov]

When I change .def file to have non-default path, e.g. headers = /usr/local/Cellar/ncurses/6.1/include/ncurses.h kotlin code for ncurses is generated as expected.

[Dmitry Kandalov]

So it look like everything is working but UX is bad. Even with -verbose option cinterop doesn’t say anything 😢