FPC 2.5.1 r16254 compile error zeoslib 6.6.6 stable
lazarus / 8-Other

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rmendoza83 · 2010-10-29 16:36

Good Evening friends, how are you? I comment my case, work with
Lazarus and freepascal with their latest versions from SVN repository,
and from this review referred to in the case Zeoslib 6.6.6 package I
can not compile because the following error:

<</ Home / user / workspace / lazarus / components / Zeoslib / src /
core / ZClasses.pas (84.22) Error: No matching Implementation for
interface method "IUnknown.QueryInterface (constref TGuid, out <Formal
type>) LongInt; Cdecl, "found>>

In addition to this error there are others but the same case and
therefore I do not think it takes mentioning. I finally updated the
compiler causes the problem.

I can do? I have to be back among the versions of the compiler so that
it can generate the latest version of lazarus. Is this a bug? report
it as I can, I hope your comments.

Greetings.

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Marc · 2010-10-31 15:34

r16180/r16181 introduces XPCom-compatible interfaces, but it breaks
existing. I don't know how to solve this. For now stick to FPC
releases prior to r18180

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Loesje · 2010-10-31 18:42

See here. I also think this is already solved in ZEOS-svn.

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marcov · 2010-10-31 18:48

Afaik, the only solution is to ifdef such cases like this:

{$ifdef fpc} constref{$else}const {$endif}

and then ifdefed for 2.5.1 vs 2.4 series:

{$if defined(fpc) and (FPC_FULLVERSION>20500)}

(but that excludes old FPC/Delphi versions that don't support $if)

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rmendoza83 · 2010-11-01 12:31

Quote from: Marc on October 31, 2010, 04:34:17 pmr16180/r16181
introduces XPCom-compatible interfaces, but it breaks existing. I
don't know how to solve this. For now stick to FPC releases prior to
r18180


Thanks for your response.

Really what I'm doing at the moment is to return to a more ancient
version of FPC (r16221) to all I know is that I can successfully
compile Zeos components.

Now would be interesting to know how to correct this problem to
continue with the programming methodology that I have, which is
developed under the latest versions of lazarus and freepascal svn.

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rmendoza83 · 2010-11-01 12:36

Quote from: Loesje on October 31, 2010, 07:42:19 pmSee here. I also
think this is already solved in ZEOS-svn.

Hi, first of all thanks for your answer, that this is the alpha
version of Zeos? I have not really wanted to work in this version of
the components because they have not yet gone to a beta version. Well
in my experience have always had problems with future applications and
although alpha Zeos components are so wonderful I have my doubts about
the proper functioning of the components.

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rmendoza83 · 2010-11-03 13:28

Quote from: Loesje on October 31, 2010, 07:42:19 pmSee here. I also
think this is already solved in ZEOS-svn.

Hello again, I tell friends that solved the problem I faced. attached
the changes I made to the file ZClasess.pas Zeos components.

We could say that this issue is resolved.

Thank you all for the contributions, especially Loesje gave me the
most appropriate reference for this situation.

Greetings.