Alpine version: 3.3.2 (2015-09-17) since commit:8ebaf602 (2015-09-21) Latest version: 3.4.1 (2015-12-02)
CMake 3.4 Release Notes
(from redmine: issue id 4916, created on 2015-12-03, closed on 2016-05-31)
main/cmake: upgrade to 3.4.0 fixes #4916