xf86-video-intel-2.21.5 compile error

[Unga]

Hi

Got the xf86-video-intel as follows:
svn co -r 777 https://trillian.chruetertee.ch/svn/ports/trunk/x11-drivers/xf86-video-intel/

And the compilation of xf86-video-intel develop following compile error:

In file included from sna_video_sprite.c:44:
/usr/local/include/libdrm/drm_fourcc.h:27:25: error: linux/types.h: No such file or directory

The /usr/local/include/libdrm/drm_fourcc.h seems to be installed by the /usr/ports/graphics/libdrm.

In FreeBSD, the "linux/types.h" should be refer to what?

Best regards
Unga