And, So I think I should cease my efforts of compiling Calligra Mobile and try Calligra Active instead. I managed to compile Calligra Mobile few times on my desktop, but it was totally useless and couldn't even read any document... I will try Calligra Active 2.5 during next few days and see if it works. Btw, even if I do this, I doubt it could be used normally in near future - I have been reading emails in project's mailing list for past few weeks and it seems like there are still some major problems even with native (ODF) format support (in some cases Words is even unable to open documents it created). But, even though, I want to do it.