cabal-install 3.14 linking fails with "shared object file not found"

[brandonchinn178]

Describe the bug

In my project, if I use the latest version of cabal-install in CI (3.14), I get a failure, but CI passes when pinning cabal-install to 3.12. PR: brandonchinn178/aeson-schemas#99. My project seems like a pretty normal library+executable+benchmark project, without anything special like compiler plugins. I'm running a simple cabal build && cabal exec -- cabal test. I can't repro locally.

CI logs:

• 3.12 passes: https://github.com/brandonchinn178/aeson-schemas/actions/runs/12850695693/job/35830628997
• 3.14 fails: https://github.com/brandonchinn178/aeson-schemas/actions/runs/12850698146/job/35830632450

One difference in 3.14 is it says "cabal_macros.h changed", presumably why it's rebuilding. Printing out cabal_macros.h before and after, I think the change is happy is not included after cabal build, but is included in the subsequent cabal exec -- cabal test. I don't use or declare happy anywhere in my cabal file, but it looks like a dependency, haskell-src-exts, uses it.

I do see this error message reported in other issues, including #8580 which I reported, but I'm reporting this separately because it looks like a possible regression between 3.12 and 3.14, instead of something I'm doing wrong.

To Reproduce
Steps to reproduce the behavior:

$ cabal build && cabal exec -- cabal test

Expected behavior
Should succeed

System information

• Operating system
• cabal, ghc versions

Additional context
Add any other context about the problem here.