Bug in cmake's "remove_definitions"

[Dmitry Suzdalev]

I believe, I've found bug in cmake.

KDE4_DEFINITIONS in FindKDE4Internal.cmake among the others contains flags 
"-DQT3_SUPPORT" and "-DQT3_SUPPORT_WARNINGS".

When I added

remove_definitions(-DQT3_SUPPORT)

I got a compile time error:

c++: _WARNINGS: No such file or directory

You see? "-DQ3_SUPPORT" was cutted from "-DQT3_SUPPORT_WARNINGS" macro 
effectively leaving _WARNINGS on command line to produce an error :).

Hope this helps.
Dmitry.