[kwin] Fix build with future glibc (major/minor macros)
Review Request #127662 - Created April 16, 2016 and submitted
...where sys/sysmacros.h is going to be removed from sys/types.h
See also: https://sourceware.org/ml/libc-alpha/2015-11/msg00452.html
builds fine with older glibc (tested with glibc-2.21) as well as a patched glibc-2.23 with the removal already implemented.
Status: Closed (submitted)
Submitted with commit 03f4f972d6c3ed03eab04c889248d089d317d370 by Andreas Sturmlechner to branch master.