cc1: warnings being treated as errors
/usr/src/sys/dev/drm/i915_mem.c:216: warning: no previous prototype for 'i915_mem_release' [-Wmissing-prototypes]
/usr/src/sys/dev/drm/i915_mem.c:246: warning: no previous prototype for 'i915_mem_takedown' [-Wmissing-prototypes]
/usr/src/sys/dev/drm/i915_mem.c: In function 'get_heap':
/usr/src/sys/dev/drm/i915_mem.c:266: error: 'drm_i915_private_t' has no member named 'agp_heap'
/usr/src/sys/dev/drm/i915_mem.c: At top level:
/usr/src/sys/dev/drm/i915_mem.c:276: warning: no previous prototype for 'i915_mem_alloc' [-Wmissing-prototypes]
/usr/src/sys/dev/drm/i915_mem.c:314: warning: no previous prototype for 'i915_mem_free' [-Wmissing-prototypes]
/usr/src/sys/dev/drm/i915_mem.c:342: warning: no previous prototype for 'i915_mem_init_heap' [-Wmissing-prototypes]
/usr/src/sys/dev/drm/i915_mem.c:366: warning: no previous prototype for 'i915_mem_destroy_heap' [-Wmissing-prototypes]