id summary reporter owner description type status milestone component version severity resolution keywords cc 8893 Documentation Error anonymous Douglas Gregor "Hello, Sorry for making a ticket here, I didn't know where to report this. Please forward to the right people. There's an error in the solution (code) proposed here: http://www.boost.org/doc/libs/1_54_0/doc/html/signals/s04.html Towards the end of the code: // Restore the macro definition of ""signals"", as it was // defined by Qt's . # define signals protected that #define statement should be changed to # define signals public Otherwise, it works on GCC, but does not work on Visual C++, as VC++ compiler will produce a different symbol (after name mangling), and the linker will report errors Otherwise, the solution works great. Thanks a million for having it! If you need to get a hold of me, you can reach me at pm@privacyprotector.eu Pawel Mroszczyk " Patches new To Be Determined signals Boost 1.54.0 Problem boost::signals, QT library