[build2] libpq build failure

[Boris Kolpackov]

Klaim - Joël Lamotte <mjklaim at gmail.com> writes:

> Interesting, I'm seeing a very similar issue with my libsodium package BUT
> that issue is not visible on the public (stage) CI  or if the package is
> built as a dependency.
>
> I made a github issue in my repo for my specific case as I am not sure if
> it's specific to my build files or if it's a bug in build2:
> https://github.com/Klaim/klaim-proto-libsodium/issues/1

I don't think this is the same issue: in your case you get the
complete header name in the diagnostics:

error: header 'sodium\version.h' not found and cannot be generated