2 zazarb .

1. Try http://gitorious.org/qserialdevice

2. If you're doing a compilation with CMake, then you must do so:
ie to gather with CMake need:

//#include "moc_serialdevicewatcher.cpp"
#include "serialdevicewatcher.moc"

ie to gather with qmake need:

#include "moc_serialdevicewatcher.cpp"
//#include "serialdevicewatcher.moc"
etc. do the same in other *. cpp files where there is # include "moc_xx.cpp"

If more, then see the topic: http://www.prog.org.ru/topic_12491_0.html
(Translated into Russian with the help of Google Translate)

I've created a CMakeLists file (attached)
Thank you. I have in the future to add CMake QSerialDevice.