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Improve package.el error messages on too-old Emacsen

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* lisp/emacs-lisp/package.el (package-compute-transaction): Give a
better error message on too-old Emacs versions (bug#54747).
This commit is contained in:
Lars Ingebrigtsen 2022-04-08 14:46:14 +02:00
parent 5c532fe303
commit e2f3b0f16e
1 changed files with 6 additions and 2 deletions
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8
lisp/emacs-lisp/package.el
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@ -1854,8 +1854,12 @@ SEEN is used internally to detect infinite recursion."
(error "Need package `%s-%s', but only %s is available"
next-pkg (package-version-join next-version)
found-something))
(t (error "Package `%s-%s' is unavailable"
next-pkg (package-version-join next-version)))))
(t
(if (eq next-pkg 'emacs)
(error "This package requires Emacs version %s"
(package-version-join next-version))
(error "Package `%s-%s' is unavailable"
next-pkg (package-version-join next-version))))))
(setq packages
(package-compute-transaction (cons found packages)
(package-desc-reqs found)