Lately I've been getting errors during compilation, as follows:

;;;----------------------------------------------------------------------

; While compiling
;   (FLET (METHOD GENERATE-PANES (STANDARD-FRAME-MANAGER CLASP-FRAME))
;     MAKE-CLIM-STREAM-PANE)
;   in /tmp/cda81fd6e.cl:
Error: Attempt to do an I/O operation on the closed stream
       #<EXCL::NULL-STREAM @ #xe30222> 
  [condition type: STREAM-CLOSED-ERROR]

Restart actions (select using :continue):
 0: retry the compilation of /tmp/cda81fd6e.cl
 1: continue compiling /tmp/cda81fd6e.cl but generate no output file

[changing package from "COMMON-LISP-USER" to "CLASP-INTERFACE"]
[Current process: Evaluation Request 27]
[1] CLASP-INTERFACE(1): 

;;;----------------------------------------------------------------------

I'm running Allegro 4.3 on a Sun Ultra 1, Solaris 2.5.1.  Any idea
what might be going on here?  The odd thing is that I can compile
smaller functions after I get this message, but anything large just
blows up, like this.  I have to start all over if I want to compile
anything.

Regards,
Rob St. Amant