[Pyrex] Struggling with "Hello World" Extension type

[Andrew Chambers]

Hi All,

I'm trying to learn how to use Pyrex by wrapping a few functions from
the libpq library.  I started with the following...

cdef extern from "libpq-fe.h":
    ctypedef enum ConnStatusType:
        CONNECTION_OK
        CONNECTION_BAD
    ctypedef struct PGconn
....
    PGconn *PQconnectdb(char *conninfo)
 
cdef class Connection:
...
    cdef PGconn *conn
 
    def __new__(self, conninfo):
        self.conn = <PGconn*>PQconnectdb(conninfo)

This compiles fine but when you try to import the .so file, you get 

"Import Error: ./libpq.so: undefined symbol: PQconnectdb".  

I've googled for code that does similar things and I can't see what I'm doing
differently.  Can anyone point me in the right direction?

Thanks,
Andy


		
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