Comment 3 for bug 1636804

The following packages have unmet dependencies:
 perl-modules-5.24 : Breaks: libextutils-cbuilder-perl (< 0.280225)

^- so libextutils-cbuilder-perl should be demoted/removed

It has revere-build-deps, but perl Provides libextutils-cbuilder-perl and any versioned ones have perl as the first alternative anyway, so everything will continue to build.