Create Apple Universal Binary

[thomasreiser]

I want to build bgfx static libraries as Apple Universal Binaries (=native support for arm64 and x64), but I am not sure how to accomplish that with GENie.

Currently I build the x64 static libs that way:

cd thirdparty/bgfx
../bx/tools/bin/darwin/genie --with-examples --with-tools --os=macosx --gcc=osx-x64 ninja
make -C bgfx/.build/projects/ninja-osx-x64 config=release64

What is the preferred way to build a universal library via command line? I can build arm64 separately via --gcc=osx-arm64, but that's not what I want.

[npnp]

If there is nothing automatic already included in genie, you should be able to build both architectures and join them using lipo command line tool.
And if that works, you could add it to the bgfx genie build process and create a pull request;)

[thomasreiser]

Yeah thank you, I ended up building it twice and merging it via lipo. I consider creating a PR for GENie. I have to have a deeper look into the tool first.

[bkaradzic]

Just to save you time... This is something that could be done without any changes of GENie, and it's thing that Apple will abandon quickly anyway.

[thomasreiser]

You think Apple will deprecate x64 in favor of arm64 soon? Not sure, there are a lot of Intel Macs in the wild..

[bkaradzic]

100% sure... Can you buy Intel macs? It's true there are probably a lot of them around, but they are all obsolete tech from Apple's POV.