[asdf-devel] asdf 2.21 released

[Faré]

I am pleased to announce the release of ASDF 2.21.
Since previous release 2.20, the changes are as follow:

 * New features:
   * Most importantly, encodings.
     ASDF now lets you specify an :encoding for a system, module or component,
     that is used when loading or compiling Lisp files. See the documentation.
     By default, the only useful value is :utf-8, and
     we recommend you use UTF-8 everywhere.
     We intend to make UTF-8 the default in the future
     (current default is the legacy behavior of using whichever implicit
     default your underlying implementation is currently configured to use).
     An extension asdf-encodings is available that supports more encodings,
     including autodetection of encoding from either emacs-style declaration
     -*- Mode: Lisp ; coding: utf-8 -*- or content.
   * require-system works like load-system, but won't try to load or update
     systems that have already been loaded, as listed by loaded-systems.
     More generally, you can specify a list of systems as :force-not argument
     to load-system and the specified systems won't be loaded or updated.
   * You can specify :force-not and a list of systems when loading a system,
   * You can now specify :hostname in your asdf-output-translations,
     so you can easily share a home directory via the network
     yet split its fasl cache between several subtly different machines.
 * Bug Fixes:
   * lp#982285. since 2.014.4, the default source-registry
     was skipping anything from /usr or XDG_DATA_DIRS,
     because of a missing test in getenv-absolute-pathnames. Fixed in .15.
   * In 2.019.9 aka 2.20, ECL support was broken by using
     a function in the wrong package (defined in cl-user). Fixed in .1.
   * logical-pathname support was somewhat broken since 2.017.6,
     due to the way most implementations fail to read physical namestrings
     when *default-pathname-defaults* is a logical-pathname.
     Fixed, together with other logical-pathname issues,
     and a test case was added to the test suite to ensure no further
regression.
     Works great modulo quirks around implementation bugs on CLISP and Allegro.
   * Make upgrading ASDF more robust on CMUCL, LispWorks, SBCL.
 * Minor tweaks:
   * Use :unspecific in pathname components on more implementations.
   * export and/or document more utilities.
   * add a few missing compatfmt for Genera.

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org
As Marx should have said, the principle of communism is From each according
to what he can't get out of doing. To each according to whom he knows.
        — John McCarthy