[patch] fix gsl-config-pathname

[Munawar Cheema]

I tried to check this on my OS X Mavericks system with CCL but I am
getting readtable errors.  Just to make sure this is what I did.

I git cloned both antik and gsll to my local-projects directory from
https://gitlab.common-lisp.net/groups/antik

If I git log I see the commit of antik is:63fa8e0a0c04090...
and for gsll it is: ad5409ec81f4af...

When I try either (ql:quickload :antik) or (ql:quickload :gsll) i get
errors like:


Reader error on #<BASIC-FILE-CHARACTER-INPUT-STREAM
("/Users/mcheema/quicklisp/local-projects/antik/tests/physical-quantities-grid.lisp"/4
UTF-8) #x3020023E839D>, near position 2047, within "m))
    #(1.0d0 5.0d":
Undefined character #\( in a #\# dispatch macro.

Reader error on #<BASIC-FILE-CHARACTER-INPUT-STREAM
("/Users/mcheema/quicklisp/local-projects/gsll/polynomial.lisp"/4
UTF-8) #x3020024DCCBD>, near position 1730, within "t x.\")

#+fsbv
(defm":
Undefined character #\+ in a #\# dispatch macro.




I see there was a commit relating to a named-readtable recently and
maybe that is causing the problem or I am just not doing this
correctly.

-- 
Kind Regards
Munawar