Re: PG Extensions: Must be statically linked? - Mailing list pgsql-hackers

From Craig A. James
Subject Re: PG Extensions: Must be statically linked?
Date
Msg-id 440775E9.50009@modgraph-usa.com
Whole thread Raw
In response to Re: PG Extensions: Must be statically linked?  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: PG Extensions: Must be statically linked?  (Peter Eisentraut <peter_e@gmx.net>)
List 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
writtenis a wrapper layer that hides the C++ objects and presents a simple C wrapper that works for Postgres.
 

Craig


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