Can i compile with static linking instead dynamic at the free version of Qt?
I can't find information about this because on the other sites pepole talks about older version of Qt which have different licence.
AFAIK, closed source + static = no.
However the best thing to do to have an official answer for this is to use the contact form on the "download":http://www.qt.io/download/ page.
What you mean about closed source? If i want to use static with free version of Qt i must publish source code of my program? But where i must do this?
Closed source: you don't share your code nor the possibility to relink your object files.
Short explanation of "LGPL":http://en.wikipedia.org/wiki/GNU_Lesser_General_Public_License on wikipedia