问题
I'm trying to build the qtestlib/tutorial1 example, but the testqstring.moc file isn't being generated when I run nmake (I'm running Qt 4.5.2 on Windows XP SP3).
I copied testqstring.cpp from the tutorial directory to my build directory (C:\sandboxes\testqstring) and from the Qt command prompt ran vsvars32.bat file from my MS Visual Studio 8 installation to add the VS environment variables.
According to the tutorial, I should run:
> qmake -project "CONFIG += qtestlib"
> qmake
> nmake
When I do, the output from nmake is:
C:/Apps/Qt/2009.03/qt/bin\moc.exe -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_TESTLIB_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -I"....\Apps\Qt\2009.03\qt\include\QtCore" -I"....\Apps\Qt\2009.03\qt\include\QtGui" -I"....\Apps\Qt\2009.03\qt\include\QtTest" -I"....\Apps\Qt\2009.03\qt\include" -I"." -I"....\Apps\Qt\2009.03\qt\include\ActiveQt" -I"debug" -I"....\Apps\Qt\2009.03\qt\mkspecs\win32-g++" -D__GNUC__ -DWIN32 testqstring.cpp -o debug\testqstring.moc
g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_TESTLIB_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_THREAD_SUPPORT -I"....\Apps\Qt\2009.03\qt\include\QtCore" -I"....\Apps\Qt\2009.03\qt\include\QtGui" -I"....\Apps\Qt\2009.03\qt\include\QtTest" -I"....\Apps\Qt\2009.03\qt\include" -I"." -I"....\Apps\Qt\2009.03\qt\include\ActiveQt" -I"debug" -I"....\Apps\Qt\2009.03\qt\mkspecs\win32-g++" -o debug\testqstring.o testqstring.cpp
testqstring.cpp:63:27: testqstring.moc: No such file or directory
NMAKE : fatal error U1077: 'C:\Apps\Qt\2009.03\mingw\bin\g++.EXE' : return code '0x1' Stop.
NMAKE : fatal error U1077: 'C:\PROGRA~1\MICROS~3\VC\BIN\nmake.exe' : return code '0x2' Stop.
So, I can see that moc.exe is being called to generate debug/testqstring.moc, but that file is never generated.
Thank you for any and all guidance you can provide.
回答1:
It looks like you're trying to use nmake to do a build with MinGW. nmake is an MSVC tool.
If you want to do a build with MinGW you must use mingw32-make. If you want to do a build with MSVC you must use a Qt built with MSVC (which means you have to build it yourself or have a commercial license).
回答2:
I had the problem that the moc.exe didn't generate any moc-files with nmake. The reason was a wrong moc.exe path inside the Makefile.Debug.
Something like:
C:/Qt/2009.03/qt/bin\moc.exe
I change it to:
C:\Qt\2009.03\qt\bin\moc.exe
and now it works. ;)
Unfortunally qmake will generate the makefiles everytime you run it from the menu or rebuild/clean the solution/project. I think it's a bug of the qmake configuration.
To fix it permanently you have to find the file C:\MyQtDir\mkspecs\win32-msvc2008\qmake.conf. For other configs you have to change win32-msvc2008.
For me it was at C:\Qt\2009.03\qt\mkspecs\win32-msvc2008\qmake.conf
Search for the phrase "QMAKE_MOC". You will find some lines like this:
QMAKE_MOC = $$[QT_INSTALL_BINS]\moc.exe
QMAKE_UIC = $$[QT_INSTALL_BINS]\uic.exe
QMAKE_IDC = $$[QT_INSTALL_BINS]\idc.exe
QT_INSTALL_BINS is a path that seems to be wrong. The directory separators are still '/' but should be '\'. At the moment I don't know exactly where I have to change QT_INSTALL_BINS. But the qt path won't change for me so I replaced the macro by hard-defined pathnames:
QMAKE_MOC = C:\Qt\2009.03\qt\bin\moc.exe
QMAKE_UIC = C:\Qt\2009.03\qt\bin\uic.exe
QMAKE_IDC = C:\Qt\2009.03\qt\bin\idc.exe
Now there are no problems with the moc anymore. Rebuilds will work fine too.
Hope this helps ;)
回答3:
Have you tried using the compiler/tools included with Qt in /mingw/bin? (On my system, Qt is installed in C:\Qt\2009.03.) Last time I checked, the non-commercial distribution of Qt will not work with Visual Studio. I just tried this from the Qt command prompt and it worked.
qmake -project "CONFIG += qtestlib"
qmake
mingw32-make
Hope this helps.
回答4:
Ar you sure the moc isn't generated? It lives in the Debug directory, so you will either need to #include "Debug/teststring.moc" or #include with an additional -IDebug compiler option.
回答5:
In case of yet compiling with VC nmake there is a workaround for this bug here: http://bugreports.qt-project.org/browse/QTBUG-6470
来源：https://stackoverflow.com/questions/1351350/qt-moc-exe-not-generating-moc-file