System Environment:
--------------------------

--Platform: i915&i945

--Architecture(32-bit,64-bit,compatiblity): all 

--2D driver:
commit 6935c732c351585f31e2094c4201a00e3d5529b3

--3D driver:
commit 3c5a1e4c2d20da0e8581df22d82a45a4156e0894

--Xserver:
commit 4cb4817c1072e1d31333db47d95f71d08bf0d1dc


--Kernel:
2.6.23


Bug detailed description:
-------------------------
build xserver will fail with git tip code
bisect shows following commit break this:

commit 4cb4817c1072e1d31333db47d95f71d08bf0d1dc
Author: Adam Jackson <ajax@redhat.com>
Date:   Fri Jan 11 23:38:48 2008 -0500

    Remove the duplicate copy of xf86cvt.c


Reproduce steps:
----------------
build git-tip xserver 



Current result:
----------------
Making all in cvt
make[5]: Entering directory `/GFX/build/component/Xorg/xorg/xserver/hw/xfree86/utils/cvt'
make[5]: *** No rule to make target `../../../../hw/xfree86/common/xf86cvt.c', needed by `cvt-xf86cvt.o'.  Stop.
make[5]: Leaving directory `/GFX/build/component/Xorg/xorg/xserver/hw/xfree86/utils/cvt'
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory `/GFX/build/component/Xorg/xorg/xserver/hw/xfree86/utils'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/GFX/build/component/Xorg/xorg/xserver/hw/xfree86'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/GFX/build/component/Xorg/xorg/xserver/hw/xfree86'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/GFX/build/component/Xorg/xorg/xserver/hw'
make: *** [all-recursive] Error 1
<gfx-ab-at: 13:38:53>: W: Process Blocked.