CL-USER 2 > (asdf:map-systems 'asdf:clear-system)
NIL

CL-USER 3 > (asdf/find-system:load-asd "g:/My Drive/Work/Projects/Lang/CL/Shared/bordeaux-threads/bordeaux-threads.asd")
; Loading text file C:\Users\marco\Documents\CL\quicklisp\dists\quicklisp\software\bordeaux-threads-v0.8.8\bordeaux-threads.asd
#<ASDF/FIND-SYSTEM:DEFINE-OP >
#<ASDF/PLAN:SEQUENTIAL-PLAN 200934B7>

CL-USER 4 > (asdf:system-source-file "bordeaux-threads")
#P"C:/Users/marco/Documents/CL/quicklisp/dists/quicklisp/software/bordeaux-threads-v0.8.8/bordeaux-threads.asd"

CL-USER 5 > (truename "g:/My Drive/Work/Projects/Lang/CL/Shared/bordeaux-threads/bordeaux-threads.asd")
#P"g:/My Drive/Work/Projects/Lang/CL/Shared/bordeaux-threads/bordeaux-threads.asd"