[Please copy the mailing list on replies.] On Wed, Feb 08, 2006 at 06:57:11PM -0400, Rodolfo Campos wrote: > When I tried to connect using libpq I got errors too. But this time the > error is trying to register the function in postgresql, the RDBMS tells me > that the function PQconnectdb is undefined. > > I don't obtain errors compiling the code. The command that I used was: > > gcc -fpic -shared -I/usr/include/postgresql -I/usr/include/postgresql/server > -lpq test.c -o test.so What does "ldd ./test.so" show? You might need to specify additional flags to give hints about libpq's location to the runtime linker; another possibility would be to set an environment variable like LD_LIBRARY_PATH. Have a look at contrib/dblink/Makefile and "Extension Building Infrastructure" in the documentation (8.0 and later). It's usually easiest to let PostgreSQL figure out how to build extensions. http://www.postgresql.org/docs/8.1/interactive/xfunc-c.html#XFUNC-C-PGXS > Another question, Can I make triggers using Perl, because I read a paper > where they say that we can't. PL/Perl triggers are supported in 8.0 and later; see the documentation for the version you're running. http://www.postgresql.org/docs/8.1/interactive/plperl-triggers.html -- Michael Fuhr
