Re: [MACTCL] Undefined symbol _Init?

[David R. <dr...@sa...>]

  Arghh!  - yes, I'd forgotten about the capitalization rules - -- 
thanks for the gentle reminder.  Wasn't familiar with the 'nm' command 
- thanks for that also.

Cheers, Dave

On Thursday, March 27, 2003, at 12:14 PM, Jim Ingham wrote:

> David,
>
> Tcl is finding the shared library, if it didn't you would get a 
> different error. BUt Tcl is not able to initialize the library because 
> it can't find the initialization functions it expects.
>
> The way Tcl loads a shared library extension is it takes the name of 
> the shared library (or the package name if you have passed that into 
> "package require"), upper-cases the first letter, lower-cases all the 
> others, adds _Init and looks up that symbol and runs the function.
>
> A common mistake is to forget the weirdo capitalization rules (which 
> were invented to get around non-case-sensitive file systems).
>
> Does your library indeed define Crax_Init and Crax_SafeInit functions? 
>  And are they exported?
>
> You can use
>
> nm /Users/drobin/Library/Tcl/CRAX/CRAX.dylib
>
> You should see a "T" symbol (exported text) for both of these.
>
> Jim
>
> On Thursday, March 27, 2003, at 10:51  AM, David Robinson wrote:
>
>> Okay I realize that this is going to be a rather vague question and I 
>> apologize in advance but I'm not sure how to approach this.
>>
>> We've succeeded in building a Tcl extension in a fashion similar to 
>> TclSpeech (called CRAX).  However, when we execute 'package require 
>> CRAX' the following dump appears in the Wish console:
>>
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> --
> Jim Ingham                                   ji...@ap...
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