[Lazarus] Widget set definitions

[Kostas Michalopoulos]

The LCL package has this in custom definitions for dependent packages:

-dLCL -dLCL$(LCLWidgetType)

So Lazarus simply defines the LCL and LCL<widgettype> at compile time.
<widgettype> is one of the subdirectories in lcl/interfaces.


On Mon, Feb 13, 2017 at 12:21 PM, Mark Morgan Lloyd via Lazarus <
lazarus at lists.lazarus-ide.org> wrote:

> On 13/02/17 10:00, Mattias Gaertner via Lazarus wrote:
>
>> On Mon, 13 Feb 2017 09:23:35 +0000Mark Morgan Lloyd via Lazarus <
>> lazarus at lists.lazarus-ide.org> wrote:
>>
>>> I've got a bit of diagnostic code that I add to most programs that >
>>> retrieves things like Subversion revision numbers and link-time build > ID.
>>> It also contains> > (*$IFDEF LCLQT *)>           widV= 'Linked with the Qt
>>> widget set';>    (*$DEFINE WIDGETSET *)> (*$ENDIF       *)> (*$IFDEF
>>> LCLFPGUI *)>     widV= 'Linked with the FPGUI widget set';>    (*$DEFINE
>>> WIDGETSET *)> (*$ENDIF       *)> > and so on.> > Presumably LCLQT and the
>>> rest are defined somewhere in the IDE or LCL, > but where can I find this
>>> so that I can make sure that my code's kept in > step?
>>>
>> uses InterfaceBase, LCLPlatformDef;
>> widV:='Linked with '+LCLPlatformDisplayNames[WidgetSet.LCLPlatform]+'widget
>> set';
>>
>
> OK, Thanks. So I can see how I can derive the names etc. from that, it
> appears to have been supported since the dawn of time, and linking to it is
> still going to be no more intrusive than some of the other stuff that's
> already in my diagnostic unit.
>
> But out of curiosity, I'd still be very interested to know how the
> compile-time definitions like the ones in my example are generated :-)
>
> --
> Mark Morgan Lloyd
> markMLl .AT. telemetry.co .DOT. uk
>
> [Opinions above are the author's, not those of his employers or colleagues]
> --
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