Hi, This should go to qt-interest mail list instead of qt-development.
BTW, this error has nothing to do with CMAKE. and I couldn't understand what you are trying to do with following code. #ifndef Q_WS_WIN return ((int*)(&Q_WS_WIN))[argc]; ... Regards, Debao On Tue, Mar 12, 2013 at 11:08 AM, pengliang(彭亮) <pengli...@founder.com>wrote: > Hello**** > > This is my first to compile qt project use cmake.**** > > I written CmakeLists.txt:**** > > PROJECT(test)**** > > CMAKE_MINIMUM_REQUIRED(VERSION 2.8)**** > > FIND_PACKAGE(Qt4 REQUIRED)**** > > INCLUDE(${QT_USE_FILE})**** > > ADD_DEFINITIONS(${QT_DEFINITIONS})**** > > SET(test_HEADERS widget.h comparefilethread.h)**** > > SET(test_SOURCES main.cpp widget.cpp comparefilethread.cpp)**** > > QT4_WRAP_CPP(test_HEADERS_MOC ${test_HEADERS})**** > > ADD_EXECUTABLE(test ${test_HEADERS_MOC} ${test_SOURCES})**** > > TARGET_LINK_LIBRARIES(test ${QT_LIBRARIES})**** > > ** ** > > ** ** > > ** ** > > When I run Cmake **** > > Maybe everything perfect. Makefile has been created.**** > > ------------ output ------------------**** > > -- The C compiler identification is GNU 4.1.2**** > > -- The CXX compiler identification is GNU 4.1.2**** > > -- Check for working C compiler: /usr/bin/cc**** > > -- Check for working C compiler: /usr/bin/cc -- works**** > > -- Detecting C compiler ABI info**** > > -- Detecting C compiler ABI info - done**** > > -- Check for working CXX compiler: /usr/bin/c++**** > > -- Check for working CXX compiler: /usr/bin/c++ -- works**** > > -- Detecting CXX compiler ABI info**** > > -- Detecting CXX compiler ABI info - done**** > > -- Looking for Q_WS_X11**** > > -- Looking for Q_WS_X11 - found**** > > -- Looking for Q_WS_WIN**** > > -- Looking for Q_WS_WIN - not found**** > > -- Looking for Q_WS_QWS**** > > -- Looking for Q_WS_QWS - not found**** > > -- Looking for Q_WS_MAC**** > > -- Looking for Q_WS_MAC - not found**** > > -- Found Qt4: /usr/local/Trolltech/Qt-4.7.1/bin/qmake (found version > "4.7.1") **** > > -- Configuring done**** > > -- Generating done**** > > -- Build files have been written to: /home/incam/test/wps/build**** > > -------------------------------------------------------------------**** > > ** ** > > But when I run make, some errors occurred.**** > > ** ** > > -------------------------- CmakeError.log ---------------------------**** > > Determining if the Q_WS_WIN exist failed with the following output:**** > > Change Dir: /home/incam/test/wps/build/CMakeFiles/CMakeTmp**** > > ** ** > > Run Build Command:/usr/bin/gmake "cmTryCompileExec1901404822/fast"**** > > /usr/bin/gmake -f CMakeFiles/cmTryCompileExec1901404822.dir/build.make > CMakeFiles/cmTryCompileExec1901404822.dir/build**** > > gmake[1]: Entering directory > `/home/incam/test/wps/build/CMakeFiles/CMakeTmp'**** > > /usr/local/bin/cmake -E cmake_progress_report > /home/incam/test/wps/build/CMakeFiles/CMakeTmp/CMakeFiles 1**** > > Building CXX object > CMakeFiles/cmTryCompileExec1901404822.dir/CheckSymbolExists.cxx.o**** > > /usr/bin/c++ -I/usr/local/Trolltech/Qt-4.7.1/include -o > CMakeFiles/cmTryCompileExec1901404822.dir/CheckSymbolExists.cxx.o -c > /home/incam/test/wps/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx**** > > /home/incam/test/wps/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: In > function ‘int main(int, char**)’:**** > > /home/incam/test/wps/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8: > 错误:‘Q_WS_WIN’ 在此作用域中尚未声明**** > > gmake[1]: *** > [CMakeFiles/cmTryCompileExec1901404822.dir/CheckSymbolExists.cxx.o] 错误 1** > ** > > gmake[1]: Leaving directory > `/home/incam/test/wps/build/CMakeFiles/CMakeTmp'**** > > gmake: *** [cmTryCompileExec1901404822/fast] 错误 2**** > > ** ** > > File /home/incam/test/wps/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: > **** > > /* */**** > > #include <QtCore/qglobal.h>**** > > ** ** > > int main(int argc, char** argv)**** > > {**** > > (void)argv;**** > > #ifndef Q_WS_WIN**** > > return ((int*)(&Q_WS_WIN))[argc];**** > > #else**** > > (void)argc;**** > > return 0;**** > > #endif**** > > }**** > > ……………**** > > ----------------------------------------------------------------------------------- > **** > > ** ** > > Could anybody tell me why?**** > > ** ** > > Thanks**** > > Ken**** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > _______________________________________________ > Development mailing list > Development@qt-project.org > http://lists.qt-project.org/mailman/listinfo/development > >
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