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Summary: nit


< == Installing packages from Internet ==


> == Installing packages from the Internet ==

Installing packages from the Internet

The most common method of installing packages of Emacs Lisp since Emacs 24 has been ELPA packages.

Additional package archives such as MELPA or MarmaladeRepo exist to supplement what is in ELPA.

Installing a new file

Make sure you have a local directory where you put elisp files. I use ~/elisp, for example.

Make sure this directory is listed in your ‘load-path’ variable. I use the following statement in my ~/.emacs file to make sure it is:

    (add-to-list 'load-path "~/elisp")

XEmacs documentation (21.4 (patch 14)) for load-path says: “Note that the elements of this list may not begin with ‘~’, so you must call expand-file-name on them before adding them to this list.” So, for XEmacs, the above should be:

    (add-to-list 'load-path (expand-file-name "~/elisp"))

You can read more about the ‘load-path’ at LoadPath. You can also add the needed paths to the EMACSLOADPATH environment variable, if you prefer.

Installing Modes

If the code in the elisp file is supposed to be a mode for files whose names match a pattern, see AutoModeAlist. If the code in the elisp file is supposed to be a mode for files who are run by certain interpreters, see InterpreterModeAlist.

Installing bigger packages

For bigger packages such as Gnus or BBDB, you usually install them somewhere, run ./configure; make; make install and then figure out where the package got installed. Then add that directory to your load-path.

Some packages can be run uncompiled. In that case, just unpack them, and add the corresponding directory to your load-path.


    (add-to-list 'load-path "/home/alex/src/erc")
    (require 'erc-auto)
    (autoload 'erc "erc")

This requires some knowledge about the package, of course. In the above case, for example, I knew that erc-auto defines lots of autoloads, but does not autoload erc itself (use erc-select to connect to network)…