[Lazarus] Strange dependency of units

[Jürgen Hestermann]

Hans-Peter Diettrich schrieb:
 > Many languages have problems with e.g. multi-platform issues or, in 
case of Lazarus, with multiple implementations (of the widgetset), 
selectable at build time. The same for (third-party) libraries, which 
may or may not come with source code. That's why features like 
"packages" have been invented, to overcome such management problems 
(search paths...). Of course everybody can manage that himself, writing 
and updating Makefiles etc., but then he has no assistance by other 
tools (expect written by himself).

Of course, if projects get larger, additional concepts may be needed to 
handle them. But this should not affect other existing well established 
concepts (like units). There are lots of people outside that do not need 
any of the more sophisticated concepts but only want to have a tool at 
hand for writing one person projects.


 > IIRC your case is somewhat non-standard, because you use an 
*abstract* class. In such an case *every* user has to indicate the unit 
or package, where that abstract interface is implemented.

I was not even aware of this fact nor would I have known that special 
provisions are needed in this case.