Error linking libpq into client program

Jim Crate

I'm trying to build a client program to access a database using the libpq
interface on MacOS X 10.3.3 using CodeWarrior 9. PostgreSQL is at version
7.4.2.

It compiles ok, but I get a link error. I have linked to libpq.a, because I got
different errors before I did that. Here is the error I'm getting right now:

Link Error: undefined: '@_1' (code)
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a

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Nov 23 '05 #1

Subscribe Reply

2365

Jim Crate

on 5/5/04, Jim Crate <jc****@deepskytech.com> wrote:

I'm trying to build a client program to access a database using the libpq
interface on MacOS X 10.3.3 using CodeWarrior 9. PostgreSQL is at version
7.4.2.

It compiles ok, but I get a link error. I have linked to libpq.a, becauseI gotdifferent errors before I did that. Here is the error I'm getting right now:

Link Error: undefined: '@_1' (code)
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a

As an update, I moved the project to Xcode (which uses gcc), and it compiles
and links just fine. I guess this was just a problem with CW? Does this work
with other compilers?

Jim Crate
Deep Sky Technologies, Inc.

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Nov 23 '05 #2

Jim Crate

on 5/5/04, Jim Crate <jc****@deepskytech.com> wrote:

I'm trying to build a client program to access a database using the libpq
interface on MacOS X 10.3.3 using CodeWarrior 9. PostgreSQL is at version
7.4.2.

It compiles ok, but I get a link error. I have linked to libpq.a, becauseI gotdifferent errors before I did that. Here is the error I'm getting right now:

Link Error: undefined: '@_1' (code)
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a
Referenced from 'pqSetenvPoll' in libpq.a

Nov 23 '05 #3

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