We're considering simplification of the process of configuring the
location(s) for packages at ./configure time. Please direct comments
and use cases to XEmacs Design <xemacs-design(a)xemacs.org>, and CC Ben
Wing <ben(a)xemacs.org> (Reply-To is set).
We're interested in use cases for specifying package location. Given
that currently XEmacs usually attempts to autodetect packages based on
the location of the `xemacs' binary and the installation prefix, we
hope that it would be unnecessary.
The context is that Ben Wing has proposed a patch which provides
--package-prefix as a simple interface to --package-path. That is,
--package-prefix=$dir is equivalent to specifying
with the exact specification of $early under discussion (Ben specified
$early as ~/.xemacs, but that is probably incorrect.)
Here are some considerations that have been advanced in discussion so
o Are multiple prefixes allowed?
o If not, does that mean we are deprecating multiple hierarchies?
o If not, we still need --package-path, don't we?
o Is it a good idea to enforce ~/.xemacs as the early-packages
o If --package-prefix forces ~/.xemacs as the early-packages
prefix, we still need --package-path, don't we?
o How should --package-prefix interact with EMACSPACKAGEPATH?
o Should there be an EMACSPACKAGEPREFIX environment variable?
o What do --package-path and --package-prefix imply about where
package-admin should install packages?
o How should --package-prefix and --package-path interact with
o Does handling --package-prefix in the general case require changes
to the package-path-finding code?
We also should consider whether simplification of package location
specification interacts with longer term plans for the packages:
o Getting rid of the special treatment of mule-packages.
o Inverting the package hierarchy (ie, true run-in-place package
Graduate School of Systems and Information Engineering University of Tsukuba
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Economics of Information Communication and Computation Systems
Experimental Economics, Microeconomic Theory, Game Theory