Compiling pgsql C/C++ interfaces on Win not using Cygwin

This means you didn't include libpq.a in your link line.

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Tom��� Vondra wrote:

Hello everybody,
is it possible to compile postgres C/C++ interfaces (use libpq or
libpq++ in a client application) on Windows not using Cygwin?

I've just tried to compile some examples from 7.2.1 using MS Visual
C++ 6, but I got lot of "uresolved external symbol" errors when
linking, for example:

testlibpq2.obj : error LNK2001: unresolved external symbol _PQfinish
testlibpq2.obj : error LNK2001: unresolved external symbol _PQnotifies
testlibpq2.obj : error LNK2001: unresolved external symbol _PQclear
testlibpq2.obj : error LNK2001: unresolved external symbol _PQresultStatus
testlibpq2.obj : error LNK2001: unresolved external symbol _PQexec
testlibpq2.obj : error LNK2001: unresolved external symbol _PQerrorMessage
testlibpq2.obj : error LNK2001: unresolved external symbol _PQstatus
testlibpq2.obj : error LNK2001: unresolved external symbol _PQsetdbLogin

I think it means some important libraries are missing (at least I
think it means this).

I don't wan't to compile all the server, just the part necessarry
to use in a client app. I don't want to use ODBC, I'd like to use
native access to database. If there's such a way?

Tomas

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Hi Tom�s,

Include the lib in your project (Project => Settings =>Link Tab => Object
Library Modules). You have two options (for debug and release modes):

1) libpq.lib (static version, you don't need to distribute libpq.dll)
2) libpqdll.lib (dinamic link library, you need to distribute libpq.dll)

Also don't forget to set the directories under Tools => Options =>
Directories (Include Files and Library Files).
In the manual there are some info about compiling the libpq libraries in
Win32. I just don't remember where exactly.

PS: I'm assuming you are creating an application with VS6, since you
mentioned that.

[]s

Crercio O. Silva / DBTools Software

----- Original Message -----
From: "Tomďż˝ Vondra" <vondra@tesmail.cz>
To: <pgsql-general@postgresql.org>
Sent: Friday, August 30, 2002 11:22 AM
Subject: [GENERAL] Compiling pgsql C/C++ interfaces on Win not using Cygwin