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Thread: Possible Qt 4.4.0 bug - project compilation

  1. 12th May 2008, 13:30 #1
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    Default Possible Qt 4.4.0 bug - project compilation

    I've succesfully compiled my app under version 4.3.4. 15 minutes ago I switched to 4.4.0 Opensource under XP and under Eclipse (it compiled without problems) and now I get following error:
    Qt Code: 
    1. mingw32-make 
    2. mingw32-make -f Makefile.Debug
    3. mingw32-make[1]: Entering directory `C:/Documents and Settings/markofr/workspace/Client'
    4. g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_SQL_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include" -I"c:\Qt\4.4.0\include\ActiveQt" -I"debug" -I"." -I"..\..\..\..\Qt\4.4.0\mkspecs\win32-g++" -o debug\CShoppingCartDelegate.o CShoppingCartDelegate.cpp
    5. g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_SQL_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include" -I"c:\Qt\4.4.0\include\ActiveQt" -I"debug" -I"." -I"..\..\..\..\Qt\4.4.0\mkspecs\win32-g++" -o debug\CShoppingCartView.o CShoppingCartView.cpp
    6. g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_SQL_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include" -I"c:\Qt\4.4.0\include\ActiveQt" -I"debug" -I"." -I"..\..\..\..\Qt\4.4.0\mkspecs\win32-g++" -o debug\CShoppingCartModel.o CShoppingCartModel.cpp
    7. g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_SQL_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include" -I"c:\Qt\4.4.0\include\ActiveQt" -I"debug" -I"." -I"..\..\..\..\Qt\4.4.0\mkspecs\win32-g++" -o debug\CMerchandizeOrder.o CMerchandizeOrder.cpp
    8. g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_SQL_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtCore" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtGui" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include\QtSql" -I"..\..\..\..\Qt\4.4.0\include" -I"c:\Qt\4.4.0\include\ActiveQt" -I"debug" -I"." -I"..\..\..\..\Qt\4.4.0\mkspecs\win32-g++" -o debug\CLanguageSelectorWidget.o CLanguageSelectorWidget.cpp
    9. In file included from cdatabasefoundation.h:7,
    10.                  from CLanguageSelectorWidget.h:30,
    11.                  from CLanguageSelectorWidget.cpp:1:
    12. globals.h:41: error: expected unqualified-id before numeric constant
    13. globals.h:41: error: expected `,' or `;' before numeric constant
    14. mingw32-make[1]: *** [debug/CLanguageSelectorWidget.o] Error 1
    15. mingw32-make[1]: Leaving directory `C:/Documents and Settings/markofr/workspace/Client'
    16. mingw32-make: *** [debug] Error 2
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    The error reffers to following single line of code. What is wrong, I have no clue:
    Qt Code: 
    1. static const qreal M_PI=3.14159265358979323846;
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    Qt 5.3 Opensource & Creator 3.1.2
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  2. 12th May 2008, 13:34 #2
    jpn
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    Does it help if you add #include <QtGlobal>?
    J-P Nurmi
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  3. 12th May 2008, 14:17 #3
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    QtGlobal is already included in current source.
    Qt 5.3 Opensource & Creator 3.1.2
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  4. 13th May 2008, 06:38 #4
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    No one does not have a clue?
    Qt 5.3 Opensource & Creator 3.1.2
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  5. 13th May 2008, 07:51 #5
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    Could you prepare a minimal compilable example reproducing the problem?
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  6. 13th May 2008, 08:44 #6
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    You mean code chunk? Here is the line:
    Qt Code: 
    1. static const qreal M_PI=3.14159265358979323846;
    To copy to clipboard, switch view to plain text mode 
    Qt 5.3 Opensource & Creator 3.1.2
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  7. 13th May 2008, 10:00 #7
    Lesiok
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    Quote Originally Posted by MarkoSan View Post
    You mean code chunk? Here is the line:
    Qt Code: 
    1. static const qreal M_PI=3.14159265358979323846;
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    I've found in a few QT's source files construction like this :
    Qt Code: 
    1. #ifndef M_PI
    2. #define M_PI 3.14159265358979323846
    3. #endif
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    So Your line of code is looking like :
    Qt Code: 
    1. static const qreal 3.14159265358979323846=3.14159265358979323846;
    To copy to clipboard, switch view to plain text mode 
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  8. The following user says thank you to Lesiok for this useful post:

    MarkoSan (13th May 2008)
  9. 13th May 2008, 10:00 #8
    flare
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    What wysota meant was if you could assemble a package that could be compiled to an executable and includes the error you meantioned, so that one can go through your code and track the error.

    According to the message it seems to me that the error does not derive from the line you've quoted but from one of the lines before (e.g. you could look if there is a semicolon missing).

    Regards, flare
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  10. 13th May 2008, 10:22 #9
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    Well, this is compile time error so I cannot assemble exe file. And, IDENTICAL CODE compiled without errors in 4.3.4. That part is weird to me. I will check other sources for missing semicolon.
    Qt 5.3 Opensource & Creator 3.1.2
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  11. 13th May 2008, 10:52 #10
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    Some more guesses: Did you switch between different Os (Max, Linux, Windows)? Maybe the line endings screw up your code.
    Make also sure that you did a clean rebuild of your project and that your PATH-variable is set correctly.

    Just some wild speculations, but maybe you give them a try. Good luck!
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  12. 13th May 2008, 10:55 #11
    jpn
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    Pssst! Lesiok already found out the problem.
    J-P Nurmi
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  13. 13th May 2008, 11:44 #12
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    Ok, my fault. The error message trying Lesiok's code looked somehow different on my machine using Visual Studio.
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  14. 14th May 2008, 09:38 #13
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    Default Re: Possible Qt 4.4.0 bug - project compilation

    Problem solved, thanks all of you for help!!!!
    Qt 5.3 Opensource & Creator 3.1.2
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