External problem

[Matthew]

Yes, I am on a Mac working with XCode.

Dave, what definitions do I need inside that code? I have seen it  
before, but I guess I don't understand what it does.
-- 
Matthew Peterson
Programmer
Christa McAuliffe Space Education Center


On Apr 19, 2007, at 8:10 AM, Dave wrote:

> Hi,
>
> Without looking at the code I'm can't tell for certain, but I think  
> this is to do with C vs C++. You need to surround it with:
>
> #ifdef __cplusplus
> extern "C"
> {
> #endif
>
> ---------- Definitions Here
>
> #ifdef __cplusplus
> };
> #endif
>
> Hope this Helps
> Dave
>
> On 18 Apr 2007, at 18:20, Matthew wrote:
>
>> I am currently trying to build a SHA1 library in the hopes that it  
>> will run faster than ShaoSean's library (Great library by the  
>> way). I have the code all written out and no errors in the code  
>> itself, but when i try to compile it has 1 error and it says:
>>
>> Undefined symbols:
>> 	_getXtable
>> 	(part of path removed)/ExternalsEnvironment2_mod/sha1_hash/cache/ 
>> Debug/sha1_hash.build/Objects-normal/ppc/sha1_hash.o reference to  
>> undefined _getXtable
>> 	symbols names listed in -exported_symbols_list: (part of path  
>> removed)/ExternalsEnvironmentV2_mod/sha1_hash/sha1_hash.exports  
>> not in linked objects
>> 	_getXtaable
>> 	collect2: Id returned 1 exit status
>>
>> looking in both externals.c and externals.h i notice that  
>> getXtable is defined but not _getXtable. Is there something that I  
>> should change to fix this?
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