Elliot Saba

Wow, this is super interesting. I'm not aware of any platform that has attempted this, but I'm willing to give it a shot. To be clear, I'm expecting that you...

> I tried mapping it to /opt/wasm32-unknown-emscripten, so I could copy the toolchain file to the same place as other platforms. But then the cache didn't work because it was...

Ah, I see. You need a cache similar to the cache we provide for `ccache`; some persistent scratch space? If so, you're going to need to add logic to mount...

@agerlach okay it took me some time to figure out how to get around some of the changes in macOS since they started locking everything down, but I have finally...

I'm AFK right now, but looking into the [failing jobs](https://buildkite.com/julialang/linearalgebra-dot-jl/builds/372#0195d9a0-ea87-4dda-940a-d590f4e800e9) I see: ``` Test Failed at /cache/build/tester-amdci5-8/julialang/linearalgebra-dot-jl/test/matmul.jl:328 Expression: 0 == #= /cache/build/tester-amdci5-8/julialang/linearalgebra-dot-jl/test/matmul.jl:328 =# @allocations(mul!(C, transpose(A), A)) Evaluated: 0 == 1...

I think before `juliaup add` is a good idea; if I were to do `juliaup add beta`, for instance, I would definitely want it to get me the latest `beta`...

We ship `libgfortran` with Julia, and make it available for libraries and executables in JLLs, so if that's all you need, you should be good to go.

> I don't know if we have available artifacts of compilers (and not cross-compilers) available thanks to BinaryBuilder / BinaryBuilderBase for all platforms (Mac, linux, FreeBSD). Ask me again in...

You should be able to either add it to the rootfs image being used, or just `apt update && apt install -y gfortran`.

@Keno review please