Re: What generates pg_config.h?

Tom, where's the -l switch exactly? What command is it attached to? (I'm
not sure what to look for.)

Thanks,

Travis

On Fri, Jan 5, 2018 at 2:56 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> writes:
> > Travis Allison wrote:
> >> No instance of Postgres 10 running. I took Tom's suggestion: I ran dpkg
> -S
> >> /usr/include/postgresql/pg_config.h
> >> Result: libpq-dev: /usr/include/postgresql/pg_config.h
>
> Ah, thanks for clearing that up.
>
> >> Any suggestions on what to do next?
>
> > I wonder if there is a mistake in the use of INCLUDEDIR vs.
> > INCLUDEDIR-SERVER for -I. Maybe both are being used, and looks like
> > only the latter should be. It seems odd that there are two pg_config.h
> > files getting included ...
>
> Yeah ...
>
> > but I do wonder why is there a pg_config.h in libpq-dev.
>
> Now I seem to recall some discussion with a packager who felt that
> providing just the latest-and-greatest libpq was sufficient for
> clients, and only server-side code needed to depend on the server
> version. So I'm betting that the intention on the Ubuntu packager's
> end is that you use a -I for /usr/include/postgresql when building
> client code, while if you want to build a server extension, you
> point at the appropriate version subdirectory. Meanwhile, the
> extension Travis is trying to build is unfamiliar with that idea
> and is throwing in a bunch of -I switches willy-nilly.
>
> In short, yeah, try removing the -I that's pointing at the upper
> directory.
>
> regards, tom lane
>