"Warning: Function MAKE-INSTANCE is currently unsupported at compile-time"

ID	Created	Type	mocl Version	Dev OS	Target	Status
#11	by Wukix on 2013-09-11 (2279 days ago)	defect	13.08	n/a	n/a	open

Description

mocl warns: "Function MAKE-INSTANCE is currently unsupported at compile-time"

This tends to happen when you have a line of code like:
(defvar *foo* (make-instance 'foo))

This is rarely an actual problem, because typically *foo* is not used at compile-time for anything. mocl will ensure that *foo* works correctly at run-time and that is the important thing.

It is possible for the warning to be a problem if compile-time execution actually accesses *foo*, like in a macro:
(defmacro foo-mac (x) 
  (if (bar *foo*) 
      `(+ ,x 1) 
      `(+ ,x 2)))
(defun use-foo-mac ()
  (foo-mac 5))

Hopefully this will be fixed soon, but until then, it is typically safe to ignore.

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