On Thu, Oct 9, 2014 at 1:48 AM, Jan Zelený <jzeleny@xxxxxxxxxx> wrote: > Good idea! Thanks and done ... In addition, http://rpm.org/wiki/PackagerDocs/Dependencies terminates rather abruptly, with "or B Supplements". That should at least be "or B Supplements A." Actually, there are a few other wording mistakes in that section; e.g., "They come *it* two different levels...". Also some text carries ambiguous meanings; e.g., what exactly does "fulfill them" mean? May I suggest the following text for the "Weak dependencies" section? In addition to the strong dependencies created by Requires, there are 4 dependency types that are ignored by rpm itself. Their purpose is to be used by dependency solvers to make choices about what packages to install. They come in two levels of strength: - Weak: The dependency solver shall attempt to process the dependency as though it were strong. If an error or warning would result, the dependency is instead ignored. - Very weak: The dependency solver shall ignore the dependency. However, the dependency may be used to display matching packages to the user as an option. The dependency solver may offer to treat both weak and very weak dependencies as weak, or it may offer to treat both weak and very weak dependencies as very weak. There are two dependency types at each level of strength. One is a forward relation, similar to Requires; the other is a reverse relation. The reverse relation indicates that the target package has additional functionality or capabilities when the declaring package is also installed. [Insert existing table here] So installing a package containing Recommends: foo should cause the dependency solver to also select a package that is named foo or that Provides: foo, if one exists and its selection does not lead to unresolvable dependencies. On the other hand, if a package that is named foo or that Provides: foo is selected, and a package bar containing "Supplements: foo" exists, then bar is also selected as long as doing so does not lead to unresolvable dependencies. In other words, if you have packages A and B and you want to declare a weak relation between them A -> B, you can either declare "Recommends: B" in A's spec file, or declare "Supplements: A" in B's spec file. HTH. Regards, -- Jerry James http://www.jamezone.org/ -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
