weston_build

install following this guide 

https://www.linuxfromscratch.org/blfs/view/8.0-systemd/general/weston.html



fix  edit libweston/weston-launch.c

for details refer to https://bugs.gentoo.org/610652

weston-launch patch for major/minor


According to NEWS if glibc-2.25:
* The inclusion of <sys/sysmacros.h> by <sys/types.h> is deprecated.  This
  means that in a future release, the macros “major”, “minor”, and “makedev”
  will only be available from <sys/sysmacros.h>
  
  
  
another reference might be useful

https://wayland.freedesktop.org/building.html