Cross-compiling a static binary from GitHub Actions

[Vladimir Panteleev]

On Sunday, 26 September 2021 at 07:51:01 UTC, Vladimir Panteleev 
wrote:
> I can't get `-gcc` to do anything, it always invokes 
> `/usr/bin/cc`.

Got it, I forgot to install that package, and LDC is silently 
ignoring the value if it can't find it:

https://github.com/ldc-developers/ldc/blob/58ee56a2100eb301c55220933dd2a84d3a7d2843/driver/tool.cpp#L59-L62