Error referencing environ with Linux SDK

[seanmrich]

I created a test project using the template and tried cross compiling for Linux using the latest release versions of swift and the static SDK. I get an error that environ is not concurrency-safe in Sources/Hummingbird/Environment line 111.

% git clone https://github.com/hummingbird-project/template
% ./template/configure.sh Hummer
% cd Hummer
% swift build --swift-sdk x86_64-swift-linux-musl
/.../Hummer/.build/checkouts/hummingbird/Sources/Hummingbird/Environment.swift:111:26: error: reference to var 'environ' is not concurrency-safe because it involves shared mutable state

I tried changing the package's tools version to swift 5.9, but got the same result. The environ variable is defined in Darwin so I'm not sure how to proceed here. It compiles fun under macOS but not Linux.

swift toolchain org.swift.6010202409231a (version 6.0.1)
linux sdk swift-6.0.1-RELEASE_static-linux-0.0.1
hummingbird 2.0.1

[adam-fowler]

This was a warning beforehand, and we could ignore it. It is really an issue with the implementation in the static SDK. I was going to add an issue for this but I just haven't managed to get around to it. If you could do so and link back to it here that would be really helpful. I'm away on holiday for 2 weeks so can't really do it just now.