That sound pretty cool! I eventually did something similar to that and built something alike to `make -p`, by hand, that was also a bit like `./configure` or C

That sound pretty cool! I eventually did something similar to that and built something alike to `make -p`, by hand, that was also a bit like `./configure` or CMakeCache.txt. It could then be read back into `make` and bypass a fair bit of configuration testing work (it's much faster on cygwin anyways). I got a bit too nervous at the automagical complexity though and never made a pull request (plus I only just fixed it to work on the old version of make that ships with macOS). But I thought perhaps you might find this fascinating for the levels of make hackery to try to untangle: https://github.com/JuliaLang/julia/compare/master...vtjnash:jn/make.inc.cache https://github.com/JuliaLang/julia/compare/master...vtjnash:...