Problem to compile with MinGW + Qt 4 + winpcap

[jlbrd]

Hello,

I want to use winpcap on Qt 4 program, but I have compilation errors if I include pcap header files with Qt headers. Here's an little example :
main.cpp

#include <pcap.h>
#include <remote-ext.h>
 
#include <QApplication>
#include <QDialog>
 
int main(int argc, char ** argv)
{
	QApplication app(argc, argv);
	QDialog *window = new QDialog;
 
	window->show();
	return app.exec();
}

#include <pcap.h>
#include <remote-ext.h>

#include <QApplication>
#include <QDialog>

int main(int argc, char ** argv)
{
	QApplication app(argc, argv);
	QDialog *window = new QDialog;
	
	window->show();
	return app.exec();
}

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and project file

SOURCES = main.cpp
win32:LIBS	+= -LC:\WpdPack\Lib -lwpcap
win32:INCLUDEPATH	+= C:\WpdPack\include

SOURCES = main.cpp
win32:LIBS	+= -LC:\WpdPack\Lib -lwpcap
win32:INCLUDEPATH	+= C:\WpdPack\include

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With Visual studio no errors. With minGW :

from C:/Qt/4.1.1-gw/include/QtGui/qapplication.h:1,
                 from C:/Qt/4.1.1-gw/include/QtGui/QApplication:1,
                 from main.cpp:4:
C:/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/mingw32/bits
/c++locale.h: In function `int std::__convert_from_v(char*, int, const char*, _T
v, int* const&, int)':
C:/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/mingw32/bits
/c++locale.h:68: error: `snprintf' is not a member of `std'
mingw32-make[1]: *** [release\main.o] Error 1
mingw32-make[1]: Leaving directory `C:/Documents and Settings/jl/Mes documents/e
ssaigcc'
mingw32-make: *** [release] Error 2

from C:/Qt/4.1.1-gw/include/QtGui/qapplication.h:1,
                 from C:/Qt/4.1.1-gw/include/QtGui/QApplication:1,
                 from main.cpp:4:
C:/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/mingw32/bits
/c++locale.h: In function `int std::__convert_from_v(char*, int, const char*, _T
v, int* const&, int)':
C:/MinGW/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/mingw32/bits
/c++locale.h:68: error: `snprintf' is not a member of `std'
mingw32-make[1]: *** [release\main.o] Error 1
mingw32-make[1]: Leaving directory `C:/Documents and Settings/jl/Mes documents/e
ssaigcc'
mingw32-make: *** [release] Error 2

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It's the last lines of errors compilation.
If I delete pcap headers, no error. If I delete Qt code and headers, no error !
Thanks for help

[jacek]

Try:

#include <QApplication>
#include <QDialog>
 
#include <pcap.h>
#include <remote-ext.h>
 
int main(int argc, char ** argv)
{
   ...
}

#include <QApplication>
#include <QDialog>

#include <pcap.h>
#include <remote-ext.h>

int main(int argc, char ** argv)
{
   ...
}

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[jlbrd]

Thanks you very much ! It's good

do you have an explanation?

[jacek]

do you have an explanation?

Unfortunately not, I've just run into similar problem when I tried to use STL in my application.

[jlbrd]

Ok thank you