Problem with dbus on windows 7

skylendar

Hi there and thx for reading and answering if you can.

I successfully compiled qt 5.4 and dbus 1.8 on windows 7 with mingw-64. The Qt5DBus.dll has been compiled and installed.with the rest of the qt stuff.

I can launch the dbus daemon with dbus-launch, connect to it with dbus-monitor, however, neither qdbusviewer nor qdbus can connect to the daemon. That being said, qdbus even returns:

Could not connect to D-Bus server: Unable to load dbus librarries.
However, the libdbus-1.dll is perfectly accessible.

What's wrong ? Any indea ?

SGaist

Hi,

What do you mean by "perfectly accessible" ? In the same folder os qdbusviewer ?

skylendar

yes, and I also tested another <listen> field in the dbus session.conf with

tcp:host=127.0.0.1,port=1234

but no way. It doesn't work

skylendar

Found something !!!

In the file qdbus_symbols.cpp, from the qt 5.4 sources, go to line 88 and change:
@lib->setFileName(QLatin1String("dbus-1"));@

to:

@#ifdef Q_OS_WIN
lib->setFileName(QLatin1String("libdbus-1.dll"));
#else
lib->setFileName(QLatin1String("dbus-1"));
#endif@

I dunno why QLibrary::setFileName() is unable to load the correct dll

SGaist

Good catch !

However you shouldn't need the .dll suffix

skylendar

I don't even need to modify the qt source.

Just rename libdbus-1.dll to dbus-1.dll . That's all :-)

This small trick could be useful to other devels, since I'm not the only one to strive to port a linux app to win.

SGaist

Then you should also update the thread title prepending [solved] so other forum users may know a solution has been found :)