[Lazarus] Fixes 2.6.2 cod breaks 2.6.0 code?

[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.
>
>> Vincent
>>

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?

-- 
Frank Church

=======================
http://devblog.brahmancreations.com