[Qt-interest] QTcpSocket and the shared library

[Salama, Yassir - AES]

Hi,
I'm trying to build a shared library with a program that uses QTcpSocket. I was able to successfully build the application as a full executable application with main.cpp
But, when I try to build a shared library module, I get error messages that basically says none of the QTcpSocket (or QAbstractSocket) are defined. Here is a piece of the linker output:

Linking CXX shared library lib/libEDGI.so
CMakeFiles/EDGI.dir/edgeDialog.o: In function `edgeDialog::okButtonClicked()':
/home/yassir/tst/QtExamples/Designer/jbi_if/edgeDialog.cpp:50: undefined reference to `QTcpSocket::QTcpSocket(QObject*)'
/home/yassir/tst/QtExamples/Designer/jbi_if/edgeDialog.cpp:51: undefined reference to `QAbstractSocket::abort()'
/home/yassir/tst/QtExamples/Designer/jbi_if/edgeDialog.cpp:52: undefined reference to `QAbstractSocket::connectToHost(QString const&, unsigned short, QFlags<QIODevice::OpenModeFlag>)'
/home/yassir/tst/QtExamples/Designer/jbi_if/edgeDialog.cpp:53: undefined reference to `QAbstractSocket::waitForConnected(int)'
/home/yassir/tst/QtExamples/Designer/jbi_if/edgeDialog.cpp:59: undefined reference to `QAbstractSocket::flush()'
collect2: ld returned 1 exit status
make[2]: *** [lib/libEDGI.so.4.2.0] Error 1
make[1]: *** [CMakeFiles/EDGI.dir/all] Error 2
make: *** [all] Error 2

And here is the list of the linker options

inking CXX shared library lib/libEDGI.so
/usr/bin/cmake -E cmake_link_script CMakeFiles/EDGI.dir/link.txt --verbose=1
/usr/bin/c++  -fPIC  -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wformat-security -fno-exceptions -fno-check-new -fno-common -Woverloaded-virtual -fno-threadsafe-statics -fvisibility=hidden -fvisibility-inlines-hidden -O2 -g -Wl,--enable-new-dtags -Wl,--fatal-warnings -Wl,--no-undefined -lc -shared -Wl,-soname,libEDGI.so.4.2.0 -o lib/libEDGI.so.4.2.0 CMakeFiles/EDGI.dir/EDGI_automoc.o CMakeFiles/EDGI.dir/edgeDialog.o /usr/lib/libkdeui.so.5.2.0 /usr/lib/libkdecore.so.5.2.0 -lQtDBus -lQtCore -lQtSvg -lQtGui -Wl,-rpath,::::::::::::::

The linker uses the following libraries:
libkdeui.so.5.2.0
libkdecore.so.5.2.0
QtDBus
QtCore QtSvg
QtGui

The same list of libraries are used in the application program that has main.cpp

Can anyone help on this?

-- newUser

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