[Lazarus] Using event driven components in console application

[JuuS]

> Having to have that library is unfortunate, but is a fundamental
> requirement since Qt exposes a C++ API which is not directly usable by
> FPC. If you start looking too closely at that point, you have to
> question the wisdom of using non-mainstream tools... I really don't want
> to go there.

Let's make L mainstream then...it certainly deserves to be IMO.

> 
> In practice, it's also worth installing database -dev packages e.g.
> libpq-dev on user-level machines, since it is these that typically set
> up a fixed-name symlink that avoids an app having to search for various
> possibilities. So on one of the older machines around here I've got
> 
> /usr/lib/libpq.a
> /usr/lib/libpq.so -> libpq.so.5.1
> /usr/lib/libpq.so.5 -> libpq.so.5.1
> /usr/lib/libpq.so.5.1
> 
> while on a newer one:
> 
> /usr/lib/libpq.a
> /usr/lib/libpq.so -> libpq.so.5.4
> /usr/lib/libpq.so.5 -> libpq.so.5.4
> /usr/lib/libpq.so.5.4
> 
> That's a distro problem, not an FPC or Lazarus one.
>