make[3]: Entering directory `/sources/driver/xf86-video-intel-2.17.0+git20120209/src/sna'
  CC     blt.lo
In file included from /usr/include/xorg/xf86Crtc.h:27:0,
                 from sna.h:51,
                 from blt.c:32:
/usr/include/xorg/randrstr.h:612:1: warning: redundant redeclaration of 'RRTransformCompute' [-Wredundant-decls]
/usr/include/xorg/rrtransform.h:63:1: note: previous declaration of 'RRTransformCompute' was here
In file included from /usr/include/xorg/xf86Crtc.h:31:0,
                 from sna.h:51,
                 from blt.c:32:
/usr/include/xorg/xf86Modes.h:43:25: warning: redundant redeclaration of 'xf86ModeHSync' [-Wredundant-decls]
/usr/include/xorg/xf86.h:324:25: note: previous declaration of 'xf86ModeHSync' was here
/usr/include/xorg/xf86Modes.h:44:25: warning: redundant redeclaration of 'xf86ModeVRefresh' [-Wredundant-decls]
/usr/include/xorg/xf86.h:325:25: note: previous declaration of 'xf86ModeVRefresh' was here
/usr/include/xorg/xf86Modes.h:53:33: warning: redundant redeclaration of 'xf86DuplicateMode' [-Wredundant-decls]
/usr/include/xorg/xf86.h:328:33: note: previous declaration of 'xf86DuplicateMode' was here
/usr/include/xorg/xf86Modes.h:54:33: warning: redundant redeclaration of 'xf86DuplicateModes' [-Wredundant-decls]
/usr/include/xorg/xf86.h:329:33: note: previous declaration of 'xf86DuplicateModes' was here
/usr/include/xorg/xf86Modes.h:56:23: warning: redundant redeclaration of 'xf86SetModeDefaultName' [-Wredundant-decls]
/usr/include/xorg/xf86.h:326:23: note: previous declaration of 'xf86SetModeDefaultName' was here
/usr/include/xorg/xf86Modes.h:57:23: warning: redundant redeclaration of 'xf86SetModeCrtc' [-Wredundant-decls]
/usr/include/xorg/xf86.h:327:23: note: previous declaration of 'xf86SetModeCrtc' was here
/usr/include/xorg/xf86Modes.h:58:23: warning: redundant redeclaration of 'xf86ModesEqual' [-Wredundant-decls]
/usr/include/xorg/xf86.h:330:23: note: previous declaration of 'xf86ModesEqual' was here
/usr/include/xorg/xf86Modes.h:60:23: warning: redundant redeclaration of 'xf86PrintModeline' [-Wredundant-decls]
/usr/include/xorg/xf86.h:332:23: note: previous declaration of 'xf86PrintModeline' was here
/usr/include/xorg/xf86Modes.h:61:33: warning: redundant redeclaration of 'xf86ModesAdd' [-Wredundant-decls]
/usr/include/xorg/xf86.h:333:33: note: previous declaration of 'xf86ModesAdd' was here
/usr/include/xorg/xf86Modes.h:64:33: warning: redundant redeclaration of 'xf86CVTMode' [-Wredundant-decls]
/usr/include/xorg/xf86.h:177:33: note: previous declaration of 'xf86CVTMode' was here
In file included from sna.h:112:0,
                 from blt.c:32:
kgem.h:48:14: error: field 'list' has incomplete type
kgem.h:49:14: error: field 'request' has incomplete type
kgem.h:50:14: error: field 'vma' has incomplete type
kgem.h:98:14: error: field 'list' has incomplete type
kgem.h:100:14: error: field 'buffers' has incomplete type
kgem.h:124:14: error: field 'flushing' has incomplete type
kgem.h:125:14: error: field 'large' has incomplete type
kgem.h:126:14: error: array type has incomplete element type
kgem.h:127:14: error: array type has incomplete element type
kgem.h:128:14: error: field 'partial' has incomplete type
kgem.h:129:14: error: field 'requests' has incomplete type
kgem.h:133:15: error: array type has incomplete element type
kgem.h: In function 'kgem_bo_map_will_stall':
kgem.h:466:3: warning: implicit declaration of function 'list_is_empty' [-Wimplicit-function-declaration]
kgem.h:466:3: warning: nested extern declaration of 'list_is_empty' [-Wnested-externs]
In file included from sna.h:113:0,
                 from blt.c:32:
sna_damage.h: At top level:
sna_damage.h:20:15: error: field 'list' has incomplete type
In file included from blt.c:32:0:
sna.h: In function 'list_add_tail':
sna.h:118:2: warning: implicit declaration of function '__list_add' [-Wimplicit-function-declaration]
sna.h:118:2: warning: nested extern declaration of '__list_add' [-Wnested-externs]
sna.h:118:22: error: dereferencing pointer to incomplete type
sna.h: At top level:
sna.h:135:14: error: field 'list' has incomplete type
sna.h:136:14: error: field 'inactive' has incomplete type
sna.h:238:14: error: field 'deferred_free' has incomplete type
sna.h:239:14: error: field 'dirty_pixmaps' has incomplete type
sna.h:240:14: error: field 'active_pixmaps' has incomplete type
sna.h:241:14: error: array type has incomplete element type
sna.h:252:15: error: field 'outputs' has incomplete type
sna.h:253:15: error: field 'crtcs' has incomplete type
blt.c: In function 'memcpy_blt':
blt.c:167:14: warning: cast discards '__attribute__((const))' qualifier from pointer target type [-Wcast-qual]
blt.c: In function 'memcpy_xor':
blt.c:242:14: warning: cast discards '__attribute__((const))' qualifier from pointer target type [-Wcast-qual]
make[3]: *** [blt.lo] Error 1
make[3]: Leaving directory `/sources/driver/xf86-video-intel-2.17.0+git20120209/src/sna'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/sources/driver/xf86-video-intel-2.17.0+git20120209/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/sources/driver/xf86-video-intel-2.17.0+git20120209'
make: *** [all] Error 2

Note: It builds fine with xorg server 1.11.902 ...