Hi.
When I start QtCreator with language other than english (I have LANG=ru_RU.UTF-8 system setting), the "Build Messages" window behaves incorrectly. When errors exist in source code (and gcc outputs them in russian due to LANG), double click on error message do open corresponding source file, but it don't jump to erroneous line, and the error message itself looks like "In member function 'Foo::Bar()':". Starting QtCreator with LANG="C" solves the issue. I think QtCreator might parse gcc output incorrectly for languages other than english, but that's just a guess.

Sorry my bad english.