Re: Problem linking with Release library

Hi, Adrian,

On Tue, May 12, 2026, 5:03 PM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

> On 5/12/26 2:12 PM, Igor Korot wrote:
> > Adrian,
> >
>
> >> Have you looked at?:
> >>
> >>
> https://www.postgresql.org/docs/current/installation-platform-notes.html#INSTALLATION-NOTES-VISUAL-STUDIO
> >
> > Also - I'm not interested in downloading the whole server. I already
> > have it installed on the other machine.
> >
> > I want libpq Debug and Release versions only as most developers do.
>
> Honestly, at this point I have no idea what your goal is. You will need
> to provide a detailed explanation of what you did before that worked and
> the conditions that where in place that made it work. Then provide
> detailed information on your current conditions and what you want the
> result to be.
>

What is want is to have a Debug and Release of libpq on this box.

That's it.

No server and no server utilities.

Just libpq. As shared dynamic library.

In the past what I did was to grab the 9.6 version and build the libpq with
simply run nmake.

I never needed to use Release version as I was working with Debug one.

However couple of days ago I needed to build Release version of my software
and so that's what I tried.
Unfortunately building Release version resulted in the linking error I was
mentioned in the OP.

Debug version was working fine.

Then I realized that there is a mismatch with the versions on my Windows
and Linux machines and as I tried to stay with the same version around
different OSes, I tried to get 17.4.

But unfortunately I was not able to build it easily with just nmake as in
the past because now it requires to install many other unrelated software.

I have no idea why the Release build failed on 9.6. But Debug one worked
for years

So then I thought about creating MSVC project for building libpq as a
dependency. All I need is to produce a basic default build of both Debug
and Release builds of libpq only. No server and no ther software needed.
Prefer to build version 17.4.

I have MSVC 2017 on Windows 8.1. This setup was working fine with libpq
Debug version 9.6

I hope now it's clear

Let me know if it's not.

Thank you.

> >
> > Thank you.
> >
> >>
> >>>
> >>> Thank you
> >>>
> >>>>
> >>>>
> >>>>>> --
> >>>>>> Adrian Klaver
> >>>>>> adrian(dot)klaver(at)aklaver(dot)com
> >>>>
> >>
> >>
> >> --
> >> Adrian Klaver
> >> adrian(dot)klaver(at)aklaver(dot)com
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>