Building the library with emscripten (emcmake) for create a .wasm file, from a .cpp file that use opendht.h

[douglas-martins]

Hi guys, i'm trying to build this library to use with Webassembly (using emcc Emscripten to build the .wasm file) but i'm really lost on how can i do that.

When i try to build using emcmake, i always has this error that can not find the msgpack, nettle and gnutls libraries (even if i have this libaries installed in my system). But when i follow the build tutorial from this repository, everything works fine. I understand that i can not build like cmake and after that use the emmake to generate the libopendht.a file, because when i do that i still facing errors when i try to compile my cpp code with the opendht, normally for others libraries used from opendht, like stdint.h or bits.

Is very confusing, because i need to point where is my .a file and my .h for opendht when i try to build my .wasm file, but the 2 thinks is not working together.

Can someone point me out some guide/tutorial for doing that?

Thanks! 😄

[aberaud]

OpenDHT probably isn't going to work with emscripten/webassembly because it relies on bare UDP sockets which (IIRC) are not supported by web browsers.

If you believe it should work, we'll help you get it to build.