Some header files are missed after installation

While building Qt Creator 3.4.0 with qbs enabled on Linux I get errors:
/usr/include/qbs/tools/buildoptions.h:35:29: fatal error: commandechomode.h: No such file or directory
/usr/include/qbs/qbs.h:44:43: fatal error: tools/projectgeneratormanager.h: No such file or directory
/usr/include/qbs/tools/projectgeneratormanager.h:35:31: fatal error: language/filetags.h: No such file or directory
/usr/include/qbs/language/filetags.h:34:28: fatal error: logging/logger.h: No such file or directory
/usr/include/qbs/language/filetags.h:35:22: fatal error: tools/id.h: No such file or directory
/usr/include/qbs/tools/projectgeneratormanager.h:36:34: fatal error: generators/generator.h: No such file or directory

As far as I understand - this files is missed after qbs installation (I install it via gentoo portage package manager).

This errors can be fixed just by copying missed files from qbs source.

But than I get another errors:
qbsproject.cpp:285:43: error: ‘class qbs::Project’ has no member named ‘addFiles’
qbsproject.cpp:314:32: error: ‘class qbs::Project’ has no member named ‘removeFiles’