[Qt-interest] Qt mocks issue multiple definition of

[Scott Aron Bloom]

Surprised...

 

However, I will say this.. you are asking qmake to have multiple files
target the same object file...

 

While there probably should be a warning in qmake, it's you asked for
it, you got it issue...

 

I would put in a bug request into the system, asking for a warning when
two files will create the same object file.

 

Scott

 

 

 

From: Alex Ivasyuv [mailto:industral at gmail.com] 
Sent: Sunday, October 31, 2010 2:04 PM
To: Scott Aron Bloom
Cc: qt-interest at trolltech.com
Subject: Re: [Qt-interest] Qt mocks issue multiple definition of

 

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] On Behalf Of Pavel Koshevoy
Sent: Sunday, October 31, 2010 1:10 PM
To: 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.
 
_______________________________________________
Qt-interest mailing list
Qt-interest at trolltech.com
http://lists.trolltech.com/mailman/listinfo/qt-interest
 
_______________________________________________
Qt-interest mailing list
Qt-interest at trolltech.com
http://lists.trolltech.com/mailman/listinfo/qt-interest

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.qt-project.org/pipermail/qt-interest-old/attachments/20101031/f44e4aba/attachment.html