Someone opened a reasonable-looking PR to update the ghc formula. It removes a few bad hacks added over the years:
https://github.com/Homebrew/homebrew/pull/39134
However, the build fails on CI when setting up HPC:
> cat utils/hpc/hpc.wrapper >> inplace/bin/hpc
> cat: utils/hpc/hpc.wrapper: No such file or directory
Is this problem familiar to anyone? That formula builds on my laptop (also Yosemite), and I'm not familiar enough with the GHC build to know what to try next. Any help is much-appreciated!
Mike