[fpc-pascal] Unexpected warning messages...

[Gene Buckle]

On 10/17/2026 12:52 AM, Sven Barth via fpc-pascal wrote:
> Gene Buckle via fpc-pascal <fpc-pascal at lists.freepascal.org> schrieb 
> am Fr., 16. Okt. 2026, 16:42:
>
>     I've started working with FPC again after a VERY long hiatus (like
>     15+
>     years!) and the application I'm working on uses TObjectCollection
>     from
>     the Generics.Collection unit.
>
>     When compiling I get the following warnings from
>     generics.dictionaries
>     and I was wondering why that is happening - I'd have thought that
>     "base"
>     units would always compile cleanly. I know I can filter them out in
>     Lazarus, but I would rather not if it can be avoided on the
>     assumption
>     that warnings are warnings for a *reason*. :)
>
>
> The assumption that base units compile cleanly is not true. Normally 
> you don't notice it however cause they're pre-compiled. Exceptions are 
> inlined routines and generic specializations cause they're both 
> processed inside the unit they're used in.
>
I don't understand why they're being compiled all the time - is this a 
Lazarus thing?  AFAIK, the only time an RTL unit should *ever* be 
recompiled is if the source changes.

The filters  (Lazarus 4.8) don't work well as filtering for "...never 
used" in generics.collections.pas never works; they're always displayed.


> There isn't really something you can do and in this case they aren't 
> problematic either. In the development version these messages have 
> been reduced.
>
They're problematic for *me* by spamming the Messages window with junk I 
don't need to see which makes the things I NEED to see difficult to find.

g.

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