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Qtopia-interest Archive, April 2007
Another problem of cross-compiling Qtopia Core-4.3.0beta


Message 1 in thread

Hi, 
i have solved first problem today, compiling process continue. but another strange error occured when the compiling process continue! 
when it compiled the file 'src/gui/embedded/qlock.cpp', it showed a error in the header file 'src/gui/embedded/qwssignalhandler_p.h', following is the message:

armv4l-unknown-linux-g++ -c -pipe -fno-exceptions -O2 -Wall -W -D_REENTRANT -fPIC -DQT_SHARED -DQT_BUILD_GUI_LIB -

DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT3_SUPPORT -DQT_MOC_COMPAT -DQT_RASTER_IMAGEENGINE -DQT_RASTER_PAINTENGINE 

-DQT_NO_FONTCONFIG -DFT2_BUILD_LIBRARY -DFT_CONFIG_OPTION_SYSTEM_ZLIB -DQT_NO_STYLE_MAC -DQT_NO_STYLE_WINDOWSVISTA -

DQT_NO_STYLE_WINDOWSXP -DQ_INTERNAL_QAPP_SRC -DQT_NO_DEBUG -DQT_CORE_LIB -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -

I../../mkspecs/qws/linux-arm-g++ -I. -I../../include/QtCore -I../../include/QtCore -I../../include -I../../include/QtGui -

I../3rdparty/libpng -I../3rdparty/zlib -I../3rdparty/freetype/src -I../3rdparty/freetype/include -

I../3rdparty/freetype/builds/unix -I../3rdparty/harfbuzz/src -I../../include/QtNetwork -I.moc/release-shared-emb-arm -

I.uic/release-shared-emb-arm -I../../include/QtCore -I../../include/QtCore -I../../include -I../../include/QtGui -

I../3rdparty/libpng -I../3rdparty/zlib -I../3rdparty/freetype/src -I../3rdparty/freetype/include -

I../3rdparty/freetype/builds/unix -I../3rdparty/harfbuzz/src -I../../include/QtNetwork -I.moc/release-shared-emb-arm -

I.uic/release-shared-emb-arm -o .obj/release-shared-emb-arm/qlock.o embedded/qlock.cpp
In file included from embedded/qlock.cpp:28:
embedded/qwssignalhandler_p.h:63: `sighandler_t' was not declared in this scope
embedded/qwssignalhandler_p.h:63: template argument 2 is invalid
embedded/qwssignalhandler_p.h:63: ANSI C++ forbids declaration `oldHandlers' with no type
make[1]: *** [.obj/release-shared-emb-arm/qlock.o] Error 1
make[1]: Leaving directory `/root/qt/qtopia-core-opensource-src-4.3.0beta/src/gui'
make: *** [sub-gui-make_default-ordered] Error 2

i found that  'qlock.cpp' and 'qwssignalhandler_p.h' are compile for the multiple-process. if i missed some settings? or it is a bug?
i configure the project as:
./configure -no-cups -xplatform qws/linux-arm-g++ -opengl -no-qvfb -depths 8,16,32 -embedded arm
and i foud that the  'sighandler_t' has been defined in  'qwssignalhandler_p.h' between '#ifdef Q_OS_BSD4' and '#endif', but my PC is not the type of BSD4, so it is not defined(i think). but it will be used in the following codes. here are the code of 'qwssignalhandler_p.h':
#include <QtCore/qmap.h>
#include <QtCore/qvector.h>
#include <QtCore/qobjectcleanuphandler.h>
#include <signal.h>

#ifdef Q_OS_BSD4
typedef sig_t sighandler_t;
#endif

class QWSSignalHandlerPrivate;

class QWSSignalHandler
{
public:
    static QWSSignalHandler* instance();

    ~QWSSignalHandler();

    inline void addSemaphore(int semno) { semaphores.append(semno); }
    void removeSemaphore(int semno);
    inline void addObject(QObject *object) { (void)objects.add(object); }

private:
    QWSSignalHandler();
    static void handleSignal(int signal);
    QMap<int, sighandler_t> oldHandlers;      //'sighandler_t' is used here, compiling error here
    QVector<int> semaphores;
    QObjectCleanupHandler objects;

    friend class QWSSignalHandlerPrivate;
};

what's wrong? what can i do?
thanks a million!



Regards,
duwchy
2007-04-22


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