Re: __i_Object_s__drop undefined symbol

[Paul Johnson]

I think if you try the Swarm build without turning on the 
METHOD_FUNCTIONS flag, then this element should be ignored by the 
compiler.  Once Swarm works without the METHOD_FUNCTIONS, then you could 
turn to the other problem.  You don't say how your gcc is patched, but I 
suspect that if it is not patched for METHOD_FUNCTIONS, then  you for 
sure need to build Swarm without that element.

pj

Perrone Alessandro wrote:
> Hi all
> Can anyone explain me how to "bypass" this error?
> --
> /usr/bin/ld: Undefined symbols:
> __i_Object_s__drop
> collect2: ld returned 1 exit status
> make: *** [findImp] Error 1
> ----
> here it is what I have understood.
> 1) The problem is defined into libDefObj and in particular to 
> DefObject.m file.
> The nm program says
>
> [Alessandro-Perrones-Computer:swarm-2002-05-14/src/defobj] alex% nm -g 
> DefObject.o | grep __i_Object_s__drop
>          U __i_Object_s__drop
> [Alessandro-Perrones-Computer:swarm-2002-05-14/src/defobj] alex%
>
> 2) the _i_Object_s_drop method is defined into the  macros.h
>
> [Alessandro-Perrones-Computer:swarm-2002-05-14/src/defobj] alex% grep 
> _i_Object_s__drop *.h
> macros.h:extern void _i_Object_s__drop (struct Object_s *, struct 
> objc_selector *);
> macros.h:#define DROP(obj) _i_Object_s__drop (obj, M(drop))
> [Alessandro-Perrones-Computer:swarm-2002-05-14/src/defobj] alex%
>
> 3) It is strange, but in the defobject.m it is included the file macros.h
>
> #import <defobj/macros.h>
>
>
> So I do not understand why there's the error.
> Any hints?
> Regards.
>                     ALEX
>
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--
Paul E. Johnson                       email: address@hidden
Dept. of Political Science            http://lark.cc.ku.edu/~pauljohn
University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66045                FAX: (785) 864-5700


                 ==================================
  Swarm-Support is for discussion of the technical details of the day
  to day usage of Swarm.  For list administration needs (esp.
  [un]subscribing), please send a message to <address@hidden>
  with "help" in the body of the message.