[fpc-devel] FPC_HAS_FEATURE_SUPPORT

[Mattias Gaertner]

On Wed, 22 Oct 2008 10:32:36 +0200 (CEST)
"Peter Vreman" <peter at freepascal.org> wrote:

> > As of version 2.3.1, the compiler by itself indicates all the
> > various features it supports with FPC_HAS_FEATURE_XXX defines.
> > Exactly which defines are defines depends on the compiler binary.
> > For normal platforms, all features are enabled.
> >
> > To indicate the use of this system, it defines
> > FPC_HAS_FEATURE_SUPPORT.
> >
> > To be able to compile the RTL with version 2.2.0, The systemh.inc
> > checks for the presence of FPC_HAS_FEATURE_SUPPORT. If it is not
> > defined then it assumes the version is below 2.3.0 and all the
> > FPC_HAS_FEATURE_XXX confitionals are defined in the systemh.inc
> > source.
> >
> > For lazarus this means that it should either
> > - Not define FPC_HAS_FEATURE_SUPPORT
> > - Or define all FPC_HAS_FEATURE_XXX constants.
> > - Or maybe even check the compiler binary using the above method...
> 
> The best solution is using the PPUs instead of sources.

Using which PPU reader?

Mattias