`Module not found` output in testsuite from checking for profiling libs looks missleadingly like an error message.
When running the testsuite for a validate build I got this output while building testsuite dependencies:
Could not find module ‘Prelude’
Perhaps you haven't installed the profiling libraries for package ‘base-4.16.0.0’?
Use -v (or `:set -v` in ghci) to see a list of the files searched for.
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2 | module Main where
| ^^^^
The validate flavour includes profiling libs so not sure why this happens. It also doesn't seem to affect anything.
I've built the branch using hadrian/build --flavour=validate -o_validate -j7 test
Edit: It seems we actually don't have prof libs in the validate flavour. So it's merely a missleading message as it looks like an error but works as intended.