From: | "Craig A(dot) James" <cjames(at)modgraph-usa(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: PG Extensions: Must be statically linked? |
Date: | 2006-03-02 22:47:05 |
Message-ID: | 440775E9.50009@modgraph-usa.com |
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Lists: | pgsql-hackers |
Tom Lane wrote:
>>I'm creating user-defined server extensions, written in C per the
>>manual "31.9. C-Language Functions". Everything works well, but only
>>if I fully link the .so such that there are *no* unresolved external
>>references at all. Not even the stuff in libstdc++.a can be left out.
>
> If you're using libstdc++.a, you are not writing C. There is no support
> for C++ in the backend, and I would strongly advise not trying to use
> it, as any of C++'s moderately interesting features like exceptions will
> not play nicely with the backend environment.
Unfortunately, we're also using a second library (OpenBabel) that is written in C++. A good portion of the code I've written is a wrapper layer that hides the C++ objects and presents a simple C wrapper that works for Postgres.
Craig
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