On Thu, Oct 19, 2017 at 01:04:05AM +0600, Evgeny wrote: > Thanks all for answers, libc6-dev was installed. And more intresting, any > "bits/locale.h" among indlude files that you listed have already existed in > my system. but g++ continue give me error message that there is no such > file or directory You need more than libc6-dev for C++ programs. There are C++ specific library packages. Installing build-essential should be your first step.