[Openmcl-devel] Undefined function: muting the compiler

Michael Minerva minerva at agentsheets.com
Tue Sep 28 23:36:03 UTC 2010


Hey Paul,

I think our issue might be better described with an example with three files:

First, we have an init.lisp that contains:

(load "home:A")
(load "home:B")

Then, A.lisp:

(defun a-func()
  (b-func))

Finally, b.lisp:

(defun b-func ()
  (print "B-FUNC!"))

When you execute the init file you will get this warning:

;Compiler warnings for "home:A.lisp.newest" :
;   In A-FUNC: Undefined function B-FUNC

Most of the time we would try to declare b-func in a file that is loaded before a.lisp gets loaded, but in a few cases this is impossible.  Is there anyway to avoid this type of warning?  Thanks.

--Mike
On Sep 28, 2010, at 4:48 PM, Paul Krueger wrote:

> Alex,
> 
> I wonder if there isn't something else going on for you. I was pretty sure that I didn't see the behavior you describe, so I created a simple example file containing two defun's that each reference the other to test my memory. Neither load nor compile-file gave any kind of warning for this example. You DO get a warning if you just open the file in the IDE and do an "execute all" on it, but I sort of expect that.
> 
> Paul
> 
> 
> On Sep 28, 2010, at 5:20 PM, Alexander Repenning wrote:
> 
>> This is just a silly but general CL question but I wonder how people are handling it. If you are loading a file containing, say, function a and b and a calling b and for some reason you cannot move up b to be located before a you will get the compiler warning In A: Undefined function B
>> 
>> Not a big deal but it is really nice to get rid of all compiler warnings if possible. I just cant find relevant stuff in CLTL2. I would imagined that one could do something like
>> 
>> (proclaim '(type function b)) or (proclaim '(function b))
>> 
>> but that does not appear to work
>> 
>> any suggestions?
>> 
>> Alex
>> 
>> 
>> 
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> 
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