Allow builds with glibc 2.20. Based on a patch by Peter Hutterer <peter.hutterer@who-t.net>. See <https://raw.githubusercontent.com/openembedded/oe-core/master/meta/recipes-graphics/xorg-driver/xf86-input-synaptics/always_include_xorg_server.h.patch>. --- xf86-video-intel-2.21.15/src/intel_device.c.~1~ 2013-08-09 16:58:48.000000000 -0400 +++ xf86-video-intel-2.21.15/src/intel_device.c 2014-12-18 00:03:54.700759577 -0500 @@ -33,6 +33,8 @@ #include <sys/ioctl.h> +#include <xorg-server.h> + #include <pciaccess.h> #include <xf86.h> #include <xf86drm.h>