Fourth or fifth try at this and finally found a way to make it work.
Absurd amount of busy-work forced on me by change in cabal's behavior.
Split up Utility modules that need posix stuff out of ones used by
Setup. Various other hacks around inability for Setup to use anything
that ifdefs a use of unix.
Probably lost a full day of my life to this.
This is how build systems make their users hate them. Just saying.
This reverts commit 51228c2306.
No, still doesn't work when built with cabal. It did with stack; stack
must somehow make the unix package implicitly available.
With cabal, System.Posix.Process and System.Posix.Env are both missing.
Seems I had all the work in past commits to make this build, at least on
linux. I'm actually surprised it does, without a unix dep, Utility.Env
still builds ok somehow despite using System.Posix.Env.
This commit was sponsored by Fernando Jimenez on Patreon.