[fpc-devel] FPC_HAS_FEATURE_SUPPORT

[Peter Vreman]

> 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?

See the mail thread in june 2008 with a proposal to create a fcl-ppu package independent of the
compiler.

http://www.hu.freepascal.org/lists/fpc-pascal/2008-June/017744.html


Peter