From: | "Maciej Grygorcewicz" <maciekgrygorcewicz(at)gmail(dot)com> |
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To: | pgsql-cygwin(at)postgresql(dot)org |
Subject: | Re :Problem with Compiling C function |
Date: | 2008-01-14 22:26:21 |
Message-ID: | e57e8a580801141426l5df33720h31091a250e35b4af@mail.gmail.com |
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Lists: | pgsql-cygwin |
2008/1/9, Maciej Grygorcewicz :
>> But linker threw such errors:
> >"
>> Unresolved External: _pgwin32_fopen referended from .... // and so on
> >Unresolved External: _pg_sprintfl referended from .... // and so on "
>>
>> Why???? I have included postgres.h , and all other required files .
>-lpgport is needed.
Thanks for the response. But I have few questions
Is this a compiler / linker switch . Can I turn it on on Builder . or have I
to use gcc or g++??
> I tried to build almost the same code but in C++ style DLL.
> DLL file was created succesfully , but on the other hand postgreSQL
couldn't
> find exported function...
> DLL was in non-undernstadable format for postgresql.
>for c++ you have to wrap the postgresql functions into extern "C".
Yes , I am wrapping exported functions in extern "C" . But it doesn't work.
Maybe I have to wrapp all functions , but this is never ending work - I
have in project many files from Jpeglib library...
--
Pozdrawiam
Maciej Grygorcewicz
maciekgrygorcewicz(at)gmail(dot)com ,
prometeusz1(at)o2(dot)pl
GG 1638280
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