jmercouris@localhost:~/Source/Lisp/ouranos> export CL_SOURCE_REGISTRY=/home/jmercouris/Source/Lisp/ouranos/libraries/jmercouris@localhost:~/Source/Lisp/ouranos> echo $CL_SOURCE_REGISTRY
/home/jmercouris/Source/Lisp/ouranos/libraries/
jmercouris@localhost:~/Source/Lisp/ouranos> ls libraries/
alexandria  asdf
jmercouris@localhost:~/Source/Lisp/ouranos> sbcl
This is SBCL 2.4.0, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses.  See the CREDITS and COPYING files in the
distribution for more information.
* (asdf:load-system :alexandria)

debugger invoked on a ASDF/FIND-COMPONENT:MISSING-COMPONENT in thread
#<THREAD tid=12919 "main thread" RUNNING {1001460003}>:
  Component :ALEXANDRIA not found

Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.

restarts (invokable by number or by possibly-abbreviated name):
  0: [RETRY                        ] Retry ASDF operation.
  1: [CLEAR-CONFIGURATION-AND-RETRY] Retry ASDF operation after resetting the
                                     configuration.
  2:                                 Retry ASDF operation.
  3:                                 Retry ASDF operation after resetting the
                                     configuration.
  4: [ABORT                        ] Exit debugger, returning to top level.

((:METHOD ASDF/OPERATE:OPERATE (SYMBOL T)) ASDF/LISP-ACTION:LOAD-OP :ALEXANDRIA) [fast-method]
; File has been modified since compilation:
;   SYS:CONTRIB;ASDF;ASDF.LISP.NEWEST
; Using form offset instead of character position.
   error finding frame source: invalid feature expression: "#.(UIOP/UTILITY:SYMBOL-TEST-TO-FEATURE-EXPRESSION
   '#:COMPILER-ERROR-CONTEXT-%SOURCE '#:SB-C)"
   source: NIL
0] 
* jmercouris@localhost:~/Source/Lisp/ouranos>