[Qt-interest] Qt mocks issue multiple definition of

[Alex Ivasyuv]

On 10/31/2010 11:00 PM, Scott Aron Bloom wrote:
>
> To the qmake call...
>
> Qmake --project --Wall
>
> Qmake --wall
>

$ qmake -project -Wall
$ qmake -Wall
$ make
.....

Nothing....

> *From:*qt-interest-bounces at trolltech.com 
> [mailto:qt-interest-bounces at trolltech.com] *On Behalf Of *Alex Ivasyuv
> *Sent:* Sunday, October 31, 2010 1:40 PM
> *To:* qt-interest at trolltech.com
> *Subject:* Re: [Qt-interest] Qt mocks issue multiple definition of
>
> On 10/31/2010 10:12 PM, Scott Aron Bloom wrote:
>
> Turn on -Wall I bet it puts out a warning
>   
>
> Nope.
> Adding
>
> QMAKE_CXXFLAGS += -Wall -W
> QMAKE_CFLAGS += -Wall -W
>
> doesn't shows additional information.
>
> $ make
> Makefile:203: warning: overriding commands for target `MyClass.o'
> Makefile:200: warning: ignoring old commands for target `MyClass.o'
> g++ -c -pipe -Wall -W -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG 
> -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED 
> -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore 
> -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -IA -I. -o main.o main.cpp
> g++ -c -pipe -Wall -W -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG 
> -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED 
> -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore 
> -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -IA -I. -o MyClass.o 
> B/MyClass.cpp
> g++ -Wl,-O1 -o adasdasdad main.o MyClass.o MyClass.o    -L/usr/lib 
> -lQtGui -lQtCore -lpthread
> MyClass.o: In function `MyClass::MyClass()':
> MyClass.cpp:(.text+0x0): multiple definition of `MyClass::MyClass()'
> MyClass.o:MyClass.cpp:(.text+0x0): first defined here
> MyClass.o: In function `MyClass::MyClass()':
> MyClass.cpp:(.text+0x10): multiple definition of `MyClass::MyClass()'
> MyClass.o:MyClass.cpp:(.text+0x10): first defined here
> MyClass.o: In function `MyClass::~MyClass()':
> MyClass.cpp:(.text+0x20): multiple definition of `MyClass::~MyClass()'
> MyClass.o:MyClass.cpp:(.text+0x20): first defined here
> MyClass.o: In function `MyClass::~MyClass()':
> MyClass.cpp:(.text+0x30): multiple definition of `MyClass::~MyClass()'
> MyClass.o:MyClass.cpp:(.text+0x30): first defined here
> MyClass.o: In function `MyClass::method2()':
> MyClass.cpp:(.text+0x40): multiple definition of `MyClass::method2()'
> MyClass.o:MyClass.cpp:(.text+0x40): first defined here
> collect2: ld returned 1 exit status
> make: *** [adasdasdad] Error 1
>
> BTW, seems like -W and -Wall enabled by default...
>
>
> -----Original Message-----
> From:qt-interest-bounces at trolltech.com  <mailto:qt-interest-bounces at trolltech.com>
> [mailto:qt-interest-bounces at trolltech.com] On Behalf Of Pavel Koshevoy
> Sent: Sunday, October 31, 2010 1:10 PM
> To:qt-interest at trolltech.com  <mailto:qt-interest at trolltech.com>
> Subject: Re: [Qt-interest] Qt mocks issue multiple definition of
>   
> On 10/31/2010 1:46 PM, Alex Ivasyuv wrote:
>
>     Hi,
>
>       
>
>     I found an ?issue? with Qt mocks.
>
>     Please checkout this simple code
>
>     http://qttestissue.googlecode.com/svn/trunk/
>
>       
>
>     If you have the same classes names, Qt mocks create the same object
>
>     names for them, and as result fails with the following error:
>
> "multiple
>
>     definition of"
>
>   
> Actually, your classes are named differently
> A/MyClass.* implements MyClass2
> B/MyClass.* implements MyClass
>   
> The class name does not have to match the file name (as in your case
> with MyClass2), but it is a good practice that a file name matches the
> name of the class -- rename A/MyClass.* to A/MyClass2.*
>   
> Other than that, this seems to be a qmake bug, it generated a Makefile
> that links the same object file twice.
>   
>       Pavel.
>   
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