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Emacs includes a facility that lets you easily download and install packages that implement additional features. Each package is a separate Emacs Lisp program, sometimes including other components such as an Info manual.
19
votes
Accepted
Why does emacs come packaged with games and amusements?
I think the only honest answer is "because we can".
According to history, the first entry lisp/play/studly.el for the GNU Emacs repository was created in 1986. Then over the years, a few additions we …
5
votes
How to proceed on package.el signature check failure
It appears that the key used to sign this package (474F05837FBDEF9B) is indeed not published (therefore cannot be signed, therefore cannot be trusted). … (unless (and (eq package-check-signature 'allow-unsigned)
(eq (epg-signature-status sig) 'no-pubkey))
(setq had-fatal-error t))
So I'm wondering if for some reason your value of package-check-signature …
4
votes
What compilers are used during installation of a package?
When installing from ELPA, most of the build process is handled by package.el, therefore by the running instance of Emacs. package.el also loads directly the product of this build process, so that the package …
52
votes
Accepted
Synchronize packages between different machines
(package-install 'auctex)
The idea is that package-install is idempotent, so if the package is already present, nothing will actually happen. … For multiple packages you can use the following:
(setq my-package-list '(package1 package2 packageN))
(mapc #'package-install my-package-list) …