[Lazarus] Fixes 2.6.2 cod breaks 2.6.0 code?

[Sven Barth]

Am 14.03.2013 15:25, schrieb Frank Church:
> On 13 March 2013 17:20, Frank Church <vfclists at gmail.com> wrote:
>> On 13 March 2013 16:52, Vincent Snijders <vincent.snijders at gmail.com> wrote:
>>> 2013/3/13 Frank Church <vfclists at gmail.com>:
>>>> Upgrading to Lazarus 1.0.7 with FPC 2.6.2 raised this error in a file
>>>> I was compiling? What does it mean?
>>>>
>>>> procedure TRxDBGrid.CheckNewCachedSizes(var AGCache: TGridDataCache);
>>>> begin
>>>>    if (rdgFooterRows in OptionsRx) and (FooterRowCount > 0) then
>>>>      Dec(GCache.ClientHeight, DefaultRowHeight * FooterRowCount + 2);
>>>> end;
>>>>
>>>> M:\Lazarus\ThirdPartyLibs\rx20\rxdbgrid.pas(2492,9) Error: Can't take
>>>> the address of constant expressions
>>>>
>>>>
>>>> Is the fixes branch supposed to introduce new functionality that can
>>>> break code that compiled in previous releases?
>>> What fixes branch are you talking about? FPC 2.6 fixes or Lazarus 1.0 fixes?
>>>
>>> Anyway, if you exploited a bug, then a fix for that bug might break your code.
>>>
>> FPC 2.6 fixes, that code has been compiling since 2.2.4. Perhaps it is
>> a bug which has been waiting to be caught.
> Is the error message the result of a bug in the implementation of FPC
> 2.6.0 or earlier versions (according to the specifications)  which got
> fixed, or the result of new specifications which were backported to
> the 2.6 series?
As I already wrote in another mail: this fix was introduced in 2.6.0 as 
you can see here: 
http://wiki.lazarus.freepascal.org/User_Changes_2.6.0#Taking_the_address_of_fields_of_record_properties 


Regards,
Sven