Fix #8645: no assertion warning on special modes (help, version, etc.) (#8647)

[cabal.git] / changelog.d / pr-8582

synopsis: Improve mutually recursive unit identifier error message
packages: Cabal
prs: #8582
description: {
Improves the error message in case of mutually recursive unit identifiers
by specifying the name of the identifier, the name of the signature, and a suggestion
to check the 'build-depends:' section.
}