Qt-interest Archive, March 2002
AW: Linker error in VS 6.0
Message 1 in thread
If you built Qt as a DLL you need to specify QT_DLL within your preprocessor
definitions.
Tom
-----Ursprüngliche Nachricht-----
Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
Gesendet: Dienstag, 12. März 2002 12:21
An: QT Mailing List (E-Mail)
Betreff: Linker error in VS 6.0
Hello,
I have started a very small project in VS (main.cpp and about.h) as a
QT-project, but now if I try to compile I get this damn linker error:
Linking...
moc_aboutdialog.obj : error LNK2005: "public: __thiscall
CAboutDialog::CAboutDialog(class QWidget *,char const *,unsigned int)"
(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined in main.obj
Debug/About.exe : fatal error LNK1169: one or more multiply defined symbols
found
Error executing link.exe.
What can I do? Any helped is wanted...
Greetz
Björn
======================================
Björn Berg
Systemintegration, Open Source Development
GeNeSys GmbH & Co. KG
Müller-Breslau-Str. 30a
45130 Essen, Germany
Fon: +49 201 8954 5420
Email: berg@genesys-e.de
======================================
--
[ signature omitted ]
Message 2 in thread
This is done... But it does not help... :-(
> -----Ursprüngliche Nachricht-----
> Von: Bauer Thomas [mailto:Thomas.Bauer@fh-joanneum.at]
> Gesendet: Dienstag, 12. März 2002 13:12
> An: 'qt-interest@trolltech.com'
> Betreff: AW: Linker error in VS 6.0
>
>
> If you built Qt as a DLL you need to specify QT_DLL within
> your preprocessor
> definitions.
>
> Tom
>
> -----Ursprüngliche Nachricht-----
> Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
> Gesendet: Dienstag, 12. März 2002 12:21
> An: QT Mailing List (E-Mail)
> Betreff: Linker error in VS 6.0
>
>
> Hello,
>
> I have started a very small project in VS (main.cpp and about.h) as a
> QT-project, but now if I try to compile I get this damn linker error:
>
> Linking...
> moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> CAboutDialog::CAboutDialog(class QWidget *,char const *,unsigned int)"
> (??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined in main.obj
> Debug/About.exe : fatal error LNK1169: one or more multiply
> defined symbols
> found
> Error executing link.exe.
>
> What can I do? Any helped is wanted...
>
> Greetz
> Björn
>
> ======================================
> Björn Berg
> Systemintegration, Open Source Development
> GeNeSys GmbH & Co. KG
> Müller-Breslau-Str. 30a
> 45130 Essen, Germany
>
> Fon: +49 201 8954 5420
> Email: berg@genesys-e.de
> ======================================
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
Message 3 in thread
Is the Intel C++ Linker for free or do I have to spent extra money for it??
Also I think, that changing the Compiler and Linker would not help to solute
the problem with MS VC++. And I want to solve THIS problem...
Björn
> -----Ursprüngliche Nachricht-----
> Von: John Dean [mailto:john@rygannon.com]
> Gesendet: Dienstag, 12. März 2002 13:37
> An: BERG@genesys-e.de; QT Mailing List (E-Mail)
> Betreff: Re: Linker error in VS 6.0
>
>
> Hi
> The MS linker is not smart enough to handle duplicate
> symbols. My solution
> was to get a better compiler and linker - Intel C++ for Windows
>
> At 12:20 12/03/2002 +0100, Berg, Björn wrote:
> >Hello,
> >
> >I have started a very small project in VS (main.cpp and about.h) as a
> >QT-project, but now if I try to compile I get this damn linker error:
> >
> >Linking...
> >moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> >CAboutDialog::CAboutDialog(class QWidget *,char const
> *,unsigned int)"
> >(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined in main.obj
> >Debug/About.exe : fatal error LNK1169: one or more multiply
> defined symbols
> >found
> >Error executing link.exe.
> >
> >What can I do? Any helped is wanted...
> >
> >Greetz
> >Björn
> >
> >======================================
> >Björn Berg
> >Systemintegration, Open Source Development
> >GeNeSys GmbH & Co. KG
> >Müller-Breslau-Str. 30a
> >45130 Essen, Germany
> >
> >Fon: +49 201 8954 5420
> >Email: berg@genesys-e.de
> >======================================
> >
> >--
> >List archive and information: http://qt-interest.trolltech.com
>
> Regards
> John,
>
> -----
> john@theKompany.com
> http://www.theKompany.com
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
Message 4 in thread
I know I had this problem, too... and I solved it but I can't seem to
remember the solution... it was something very obvious (afterwards ;-)
Tom
-----Ursprüngliche Nachricht-----
Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
Gesendet: Dienstag, 12. März 2002 15:22
An: 'john@rygannon.com'; QT Mailing List (E-Mail)
Betreff: AW: Linker error in VS 6.0
Is the Intel C++ Linker for free or do I have to spent extra money for it??
Also I think, that changing the Compiler and Linker would not help to solute
the problem with MS VC++. And I want to solve THIS problem...
Björn
> -----Ursprüngliche Nachricht-----
> Von: John Dean [mailto:john@rygannon.com]
> Gesendet: Dienstag, 12. März 2002 13:37
> An: BERG@genesys-e.de; QT Mailing List (E-Mail)
> Betreff: Re: Linker error in VS 6.0
>
>
> Hi
> The MS linker is not smart enough to handle duplicate
> symbols. My solution
> was to get a better compiler and linker - Intel C++ for Windows
>
> At 12:20 12/03/2002 +0100, Berg, Björn wrote:
> >Hello,
> >
> >I have started a very small project in VS (main.cpp and about.h) as a
> >QT-project, but now if I try to compile I get this damn linker error:
> >
> >Linking...
> >moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> >CAboutDialog::CAboutDialog(class QWidget *,char const
> *,unsigned int)"
> >(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined in main.obj
> >Debug/About.exe : fatal error LNK1169: one or more multiply
> defined symbols
> >found
> >Error executing link.exe.
> >
> >What can I do? Any helped is wanted...
> >
> >Greetz
> >Björn
> >
> >======================================
> >Björn Berg
> >Systemintegration, Open Source Development
> >GeNeSys GmbH & Co. KG
> >Müller-Breslau-Str. 30a
> >45130 Essen, Germany
> >
> >Fon: +49 201 8954 5420
> >Email: berg@genesys-e.de
> >======================================
> >
> >--
> >List archive and information: http://qt-interest.trolltech.com
>
> Regards
> John,
>
> -----
> john@theKompany.com
> http://www.theKompany.com
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
--
[ signature omitted ]
Message 5 in thread
Maybe something in the project or workspace settings?
Björn
> -----Ursprüngliche Nachricht-----
> Von: Bauer Thomas [mailto:Thomas.Bauer@fh-joanneum.at]
> Gesendet: Dienstag, 12. März 2002 15:26
> An: 'BERG@genesys-e.de'; 'john@rygannon.com'; QT Mailing List (E-Mail)
> Betreff: AW: Linker error in VS 6.0
>
>
> I know I had this problem, too... and I solved it but I can't seem to
> remember the solution... it was something very obvious (afterwards ;-)
>
> Tom
>
>
> -----Ursprüngliche Nachricht-----
> Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
> Gesendet: Dienstag, 12. März 2002 15:22
> An: 'john@rygannon.com'; QT Mailing List (E-Mail)
> Betreff: AW: Linker error in VS 6.0
>
>
> Is the Intel C++ Linker for free or do I have to spent extra
> money for it??
> Also I think, that changing the Compiler and Linker would not
> help to solute
> the problem with MS VC++. And I want to solve THIS problem...
>
> Björn
>
> > -----Ursprüngliche Nachricht-----
> > Von: John Dean [mailto:john@rygannon.com]
> > Gesendet: Dienstag, 12. März 2002 13:37
> > An: BERG@genesys-e.de; QT Mailing List (E-Mail)
> > Betreff: Re: Linker error in VS 6.0
> >
> >
> > Hi
> > The MS linker is not smart enough to handle duplicate
> > symbols. My solution
> > was to get a better compiler and linker - Intel C++ for Windows
> >
> > At 12:20 12/03/2002 +0100, Berg, Björn wrote:
> > >Hello,
> > >
> > >I have started a very small project in VS (main.cpp and
> about.h) as a
> > >QT-project, but now if I try to compile I get this damn
> linker error:
> > >
> > >Linking...
> > >moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> > >CAboutDialog::CAboutDialog(class QWidget *,char const
> > *,unsigned int)"
> > >(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined
> in main.obj
> > >Debug/About.exe : fatal error LNK1169: one or more multiply
> > defined symbols
> > >found
> > >Error executing link.exe.
> > >
> > >What can I do? Any helped is wanted...
> > >
> > >Greetz
> > >Björn
> > >
> > >======================================
> > >Björn Berg
> > >Systemintegration, Open Source Development
> > >GeNeSys GmbH & Co. KG
> > >Müller-Breslau-Str. 30a
> > >45130 Essen, Germany
> > >
> > >Fon: +49 201 8954 5420
> > >Email: berg@genesys-e.de
> > >======================================
> > >
> > >--
> > >List archive and information: http://qt-interest.trolltech.com
> >
> > Regards
> > John,
> >
> > -----
> > john@theKompany.com
> > http://www.theKompany.com
> >
> > --
> > List archive and information: http://qt-interest.trolltech.com
> >
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
Message 6 in thread
Are you perhaps including "moc_aboutdialog.cpp" in main.cpp?
BTW: I would be very cautious with linkers that accept duplicate
defined symbols. They are not supposed to, unless the programmer
allows it using the respective linker option.
- Soeren
> > > >moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> > > >CAboutDialog::CAboutDialog(class QWidget *,char const
> > > *,unsigned int)"
> > > >(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined
> > in main.obj
> > > >Debug/About.exe : fatal error LNK1169: one or more multiply
Message 7 in thread
Did you specify /subsystem:windows in 'project->project
settings->link->general->project options'.
I seem that I had to do this manually.
Tom
-----Ursprüngliche Nachricht-----
Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
Gesendet: Dienstag, 12. März 2002 15:32
An: QT Mailing List (E-Mail)
Betreff: AW: Linker error in VS 6.0
Maybe something in the project or workspace settings?
Björn
> -----Ursprüngliche Nachricht-----
> Von: Bauer Thomas [mailto:Thomas.Bauer@fh-joanneum.at]
> Gesendet: Dienstag, 12. März 2002 15:26
> An: 'BERG@genesys-e.de'; 'john@rygannon.com'; QT Mailing List (E-Mail)
> Betreff: AW: Linker error in VS 6.0
>
>
> I know I had this problem, too... and I solved it but I can't seem to
> remember the solution... it was something very obvious (afterwards ;-)
>
> Tom
>
>
> -----Ursprüngliche Nachricht-----
> Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
> Gesendet: Dienstag, 12. März 2002 15:22
> An: 'john@rygannon.com'; QT Mailing List (E-Mail)
> Betreff: AW: Linker error in VS 6.0
>
>
> Is the Intel C++ Linker for free or do I have to spent extra
> money for it??
> Also I think, that changing the Compiler and Linker would not
> help to solute
> the problem with MS VC++. And I want to solve THIS problem...
>
> Björn
>
> > -----Ursprüngliche Nachricht-----
> > Von: John Dean [mailto:john@rygannon.com]
> > Gesendet: Dienstag, 12. März 2002 13:37
> > An: BERG@genesys-e.de; QT Mailing List (E-Mail)
> > Betreff: Re: Linker error in VS 6.0
> >
> >
> > Hi
> > The MS linker is not smart enough to handle duplicate
> > symbols. My solution
> > was to get a better compiler and linker - Intel C++ for Windows
> >
> > At 12:20 12/03/2002 +0100, Berg, Björn wrote:
> > >Hello,
> > >
> > >I have started a very small project in VS (main.cpp and
> about.h) as a
> > >QT-project, but now if I try to compile I get this damn
> linker error:
> > >
> > >Linking...
> > >moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> > >CAboutDialog::CAboutDialog(class QWidget *,char const
> > *,unsigned int)"
> > >(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined
> in main.obj
> > >Debug/About.exe : fatal error LNK1169: one or more multiply
> > defined symbols
> > >found
> > >Error executing link.exe.
> > >
> > >What can I do? Any helped is wanted...
> > >
> > >Greetz
> > >Björn
> > >
> > >======================================
> > >Björn Berg
> > >Systemintegration, Open Source Development
> > >GeNeSys GmbH & Co. KG
> > >Müller-Breslau-Str. 30a
> > >45130 Essen, Germany
> > >
> > >Fon: +49 201 8954 5420
> > >Email: berg@genesys-e.de
> > >======================================
> > >
> > >--
> > >List archive and information: http://qt-interest.trolltech.com
> >
> > Regards
> > John,
> >
> > -----
> > john@theKompany.com
> > http://www.theKompany.com
> >
> > --
> > List archive and information: http://qt-interest.trolltech.com
> >
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
--
[ signature omitted ]
Message 8 in thread
No, this was automatically done...
> -----Ursprüngliche Nachricht-----
> Von: Bauer Thomas [mailto:Thomas.Bauer@fh-joanneum.at]
> Gesendet: Dienstag, 12. März 2002 15:39
> An: 'BERG@genesys-e.de'; QT Mailing List (E-Mail)
> Betreff: AW: Linker error in VS 6.0
>
>
> Did you specify /subsystem:windows in 'project->project
> settings->link->general->project options'.
> I seem that I had to do this manually.
>
> Tom
>
> -----Ursprüngliche Nachricht-----
> Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
> Gesendet: Dienstag, 12. März 2002 15:32
> An: QT Mailing List (E-Mail)
> Betreff: AW: Linker error in VS 6.0
>
>
> Maybe something in the project or workspace settings?
>
> Björn
>
> > -----Ursprüngliche Nachricht-----
> > Von: Bauer Thomas [mailto:Thomas.Bauer@fh-joanneum.at]
> > Gesendet: Dienstag, 12. März 2002 15:26
> > An: 'BERG@genesys-e.de'; 'john@rygannon.com'; QT Mailing
> List (E-Mail)
> > Betreff: AW: Linker error in VS 6.0
> >
> >
> > I know I had this problem, too... and I solved it but I
> can't seem to
> > remember the solution... it was something very obvious
> (afterwards ;-)
> >
> > Tom
> >
> >
> > -----Ursprüngliche Nachricht-----
> > Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
> > Gesendet: Dienstag, 12. März 2002 15:22
> > An: 'john@rygannon.com'; QT Mailing List (E-Mail)
> > Betreff: AW: Linker error in VS 6.0
> >
> >
> > Is the Intel C++ Linker for free or do I have to spent extra
> > money for it??
> > Also I think, that changing the Compiler and Linker would not
> > help to solute
> > the problem with MS VC++. And I want to solve THIS problem...
> >
> > Björn
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: John Dean [mailto:john@rygannon.com]
> > > Gesendet: Dienstag, 12. März 2002 13:37
> > > An: BERG@genesys-e.de; QT Mailing List (E-Mail)
> > > Betreff: Re: Linker error in VS 6.0
> > >
> > >
> > > Hi
> > > The MS linker is not smart enough to handle duplicate
> > > symbols. My solution
> > > was to get a better compiler and linker - Intel C++ for Windows
> > >
> > > At 12:20 12/03/2002 +0100, Berg, Björn wrote:
> > > >Hello,
> > > >
> > > >I have started a very small project in VS (main.cpp and
> > about.h) as a
> > > >QT-project, but now if I try to compile I get this damn
> > linker error:
> > > >
> > > >Linking...
> > > >moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> > > >CAboutDialog::CAboutDialog(class QWidget *,char const
> > > *,unsigned int)"
> > > >(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined
> > in main.obj
> > > >Debug/About.exe : fatal error LNK1169: one or more multiply
> > > defined symbols
> > > >found
> > > >Error executing link.exe.
> > > >
> > > >What can I do? Any helped is wanted...
> > > >
> > > >Greetz
> > > >Björn
> > > >
> > > >======================================
> > > >Björn Berg
> > > >Systemintegration, Open Source Development
> > > >GeNeSys GmbH & Co. KG
> > > >Müller-Breslau-Str. 30a
> > > >45130 Essen, Germany
> > > >
> > > >Fon: +49 201 8954 5420
> > > >Email: berg@genesys-e.de
> > > >======================================
> > > >
> > > >--
> > > >List archive and information: http://qt-interest.trolltech.com
> > >
> > > Regards
> > > John,
> > >
> > > -----
> > > john@theKompany.com
> > > http://www.theKompany.com
> > >
> > > --
> > > List archive and information: http://qt-interest.trolltech.com
> > >
> >
> > --
> > List archive and information: http://qt-interest.trolltech.com
> >
> > --
> > List archive and information: http://qt-interest.trolltech.com
> >
>
> --
> List archive and information: http://qt-interest.trolltech.com
>
Message 9 in thread
No, I do not include "moc_aboutdialog.cpp" in main.cpp... Is this
necessary??
Björn
> -----Ursprüngliche Nachricht-----
> Von: Soeren.Fietzke@t-online.de [mailto:Soeren.Fietzke@t-online.de]
> Gesendet: Dienstag, 12. März 2002 15:41
> An: BERG@genesys-e.de; Qt Interest List
> Betreff: Re: Linker error in VS 6.0
>
>
> Are you perhaps including "moc_aboutdialog.cpp" in main.cpp?
>
> BTW: I would be very cautious with linkers that accept duplicate
> defined symbols. They are not supposed to, unless the programmer
> allows it using the respective linker option.
>
> - Soeren
>
>
> > > > >moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> > > > >CAboutDialog::CAboutDialog(class QWidget *,char const
> > > > *,unsigned int)"
> > > > >(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined
> > > in main.obj
> > > > >Debug/About.exe : fatal error LNK1169: one or more multiply
>
>
Message 10 in thread
No, no, don't do that :-)
On second thought, the constructor of CAboutDialog should not appear in the moc file at all.
If the code is not too long, perhaps just post it?
- Soeren
----- Original Message -----
From: "Berg, Björn" <BERG@genesys-e.de>
To: <Soeren.Fietzke@t-online.de>; "QT Mailing List (E-Mail)" <qt-interest@trolltech.com>
Sent: Tuesday, March 12, 2002 3:50 PM
Subject: AW: Linker error in VS 6.0
No, I do not include "moc_aboutdialog.cpp" in main.cpp... Is this
necessary??
Björn
Message 11 in thread
Nah... I never included any MOC file in any Qt project.
Tom
-----Ursprüngliche Nachricht-----
Von: "Berg, Björn" [mailto:BERG@genesys-e.de]
Gesendet: Dienstag, 12. März 2002 15:51
An: 'Soeren.Fietzke@t-online.de'; QT Mailing List (E-Mail)
Betreff: AW: Linker error in VS 6.0
No, I do not include "moc_aboutdialog.cpp" in main.cpp... Is this
necessary??
Björn
> -----Ursprüngliche Nachricht-----
> Von: Soeren.Fietzke@t-online.de [mailto:Soeren.Fietzke@t-online.de]
> Gesendet: Dienstag, 12. März 2002 15:41
> An: BERG@genesys-e.de; Qt Interest List
> Betreff: Re: Linker error in VS 6.0
>
>
> Are you perhaps including "moc_aboutdialog.cpp" in main.cpp?
>
> BTW: I would be very cautious with linkers that accept duplicate
> defined symbols. They are not supposed to, unless the programmer
> allows it using the respective linker option.
>
> - Soeren
>
>
> > > > >moc_aboutdialog.obj : error LNK2005: "public: __thiscall
> > > > >CAboutDialog::CAboutDialog(class QWidget *,char const
> > > > *,unsigned int)"
> > > > >(??0CAboutDialog@@QAE@PAVQWidget@@PBDI@Z) already defined
> > > in main.obj
> > > > >Debug/About.exe : fatal error LNK1169: one or more multiply
>
>
--
[ signature omitted ]
