QTSDK4.7.4 MingW errors
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I just update my QtSDK to version4.7.4, but when I try to build my project,building error are the following. would you guys please give me some ideas on it? someone say I need to download the mingw and install it, is it right?
@Running build steps for project DataLayer...
Configuration unchanged, skipping qmake step.
Starting: "E:\QtSDK\mingw\bin\mingw32-make.exe"
E:/QtSDK/mingw/bin/mingw32-make -f Makefile.Debug
mingw32-make[1]: Entering directory `F:/NeoStrat/QtProjects/Source/Trunk/DataLayer-build-desktop'
g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DDATALAYER_LIBRARY -DQT_DLL -DQT_SQL_LIB -DQT_XML_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_HAVE_MMX -DQT_HAVE_3DNOW -DQT_HAVE_SSE -DQT_HAVE_MMXEXT -DQT_HAVE_SSE2 -DQT_THREAD_SUPPORT -I"e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\QtCore" -I"e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\QtGui" -I"e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\QtXml" -I"e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\QtSql" -I"e:\QtSDK\Desktop\Qt\4.7.4\mingw\include" -I"....\Trunk" -I"..\units" -I"..\Common" -I"..\AppLibrary" -I"e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\ActiveQt" -I"debug" -I"..\DataLayer" -I"." -I"e:\QtSDK\Desktop\Qt\4.7.4\mingw\mkspecs\win32-g++" -o debug\Engineering.o ..\DataLayer\Engineering.cpp
In file included from e:\qtsdk\mingw\bin../lib/gcc/mingw32/4.4.0/include/c++/iterator:61,
from e:\QtSDK\Desktop\Qt\4.7.4\mingw\include/QtCore/qlist.h:50,
from e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\QtCore/qvariant.h:47,
from e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\QtCore/QVariant:1,
from ..\DataLayer/NeoStratTableBase.h:4,
from ..\DataLayer/Engineering.h:7,
from ..\DataLayer\Engineering.cpp:1:
e:\qtsdk\mingw\bin../lib/gcc/mingw32/4.4.0/include/c++/cstddef:51: error: '::ptrdiff_t' has not been declared
e:\qtsdk\mingw\bin../lib/gcc/mingw32/4.4.0/include/c++/cstddef:52: error: '::size_t' has not been declared
In file included from e:\qtsdk\mingw\bin../lib/gcc/mingw32/4.4.0/include/c++/bits/postypes.h:42,
from e:\qtsdk\mingw\bin../lib/gcc/mingw32/4.4.0/include/c++/iosfwd:42,
from e:\qtsdk\mingw\bin../lib/gcc/mingw32/4.4.0/include/c++/ios:39,
from e:\qtsdk\mingw\bin../lib/gcc/mingw32/4.4.0/include/c++/ostream:40,
from e:\qtsdk\mingw\bin../lib/gcc/mingw32/4.4.0/include/c++/iterator:65,
from e:\QtSDK\Desktop\Qt\4.7.4\mingw\include/QtCore/qlist.h:50,
from e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\QtCore/qvariant.h:47,
from e:\QtSDK\Desktop\Qt\4.7.4\mingw\include\QtCore/QVariant:1,
from ..\DataLayer/NeoStratTableBase.h:4,
from ..\DataLayer/Engineering.h:7,
from ..\DataLayer\Engineering.cpp:1:
@