[cmucl-imp] ASDF 2.019 released

[Faré]

Dear CL users,

I released ASDF 2.018.21 as 2.019.

Please test and upon success update your implementations and distributions.

Since 2.018, we have the following improvements:

User-Facing Changes:
  * UI: Create and use a load-systems abstraction,
   in view of using it in a system-granular parallelizing backend. (.15)
  * Usability: when a system can't be found, there's now a restart to retry
   finding a system after reinitializing the source-registry (.10).
  * Feature: :around-compile now accepts lambda expressions, and also strings,
   so you can specify future wrappers that can't even be read yet. (.11, .12).
  * Filesystem: recursing through logical pathnames in LispWorks (.2, .3),
   on SBCL as on CMUCL, have asdf:subdirectories follow symlinks (.8., .9)

Change in Internals:
  * Configuration: modify user-configuration-directories and
   system-configuration-directories to return all valid directory names
   even when they don't exist yet so you may create them (.6), also output
   name of non-existing configuration file when opening them for writing (.7),
  * Internals: strcat (.5), split locate-systems from find-systems (.6)

Bug Fixes:
  * Portability: Debugged CormanLisp support (.1).
   Fix type declaration for SCL (.17). Tweaked for Genera (.21).
  * Bug fix: don't drop pathname components without a / at the end
   when reading a path using GETENV (.18). (Bug from 2.017.27)
   Closes debian bug #647544.
  * Bug fix: don't redefine reinitialize-instance in ways that break
   its contract and its clients (such as asdf-dependency-grovel).
   Use change-class to reset slots (.16), but not to 'standard-object,
   which breaks ecl, rather to a proto-system class (.19), and not
   using keys with breaks genera (.21). (Bug from 2.017.3)
  * Bug fix: buglet in maybe-add-tree (.4)

Upgrade:
  * Upgrade: unintern internals of signature changed in 2.017.12 (.13),
   have *system-definition-search-functions* not be a defparameter,
   but a defvar with a fixup (.14), clear *systems-being-defined* when
   upgrading asdf but re-find them immediately because they may be needed
   as part of a higher operation (.14).
   Unintern some more functions that have changed signature (.20).

Happy Hacking!

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org
That life is worth living is the most necessary of assumptions, and were it
not assumed, the most impossible of conclusions. — George Santayana