Error in installing cvs

Hello all,

I have a problem installing xfree cvs. After a successful "make World", i type 
under root "make install", but i have this error:

make[4]: Entering directory `/home/tom/cvs/xc/programs/Xserver/hw/vfb'
make[4]: Nothing to be done for `all'.
make[4]: Leaving directory `/home/tom/cvs/xc/programs/Xserver/hw/vfb'
gcc -m32 -o XFree86 -O2 -fno-strength-reduce -fno-strict-aliasing -ansi 
-pedantic -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes 
-Wmissing-declarations -Wredundant-decls -Wnested-externs -Wundef     
-L../../exports/lib   xkb/xf86KillSrv.o xkb/xf86VT.o xkb/xf86Private.o        
../../programs/Xserver/hw/xfree86/common/xf86Init.o 
../../programs/Xserver/hw/xfree86/common/xf86IniExt.o 
../../programs/Xserver/hw/xfree86/common/libxf86.a       
../../programs/Xserver/hw/xfree86/parser/libxf86config.a 
../../programs/Xserver/hw/xfree86/os-support/libxf86_os.a 
../../programs/Xserver/hw/xfree86/loader/libloader.a           
../../programs/Xserver/hw/xfree86/common/libxf86.a dix/libdix.a os/libos.a  
../../exports/lib/libXdmcp.a           ../../lib/font/fontbase.o               
../../lib/font/libfontbase.a Xext/libexts.a xkb/libxkb.a Xi/libxinput.a                   
lbx/liblbx.a                   ../../lib/lbxutil/liblbxutil.a  
../../programs/Xserver/hw/xfree86/common/libxf86.a            Xext/libexts.a 
xkb/libxkb.a Xi/libxinput.a                   lbx/liblbx.a                   
../../lib/lbxutil/liblbxutil.a  randr/librandr.a render/librender.a 
dix/libxpstubs.a mi/libmi.a Xext/libexts.a xkb/libxkb.a Xi/libxinput.a                   
lbx/liblbx.a                   ../../lib/lbxutil/liblbxutil.a  
randr/librandr.a render/librender.a  
../../programs/Xserver/hw/xfree86/os-support/libxf86_os.a     -lz -lm                       
-rdynamic -ldl  -Wl,-rpath-link,../../exports/lib
os/libos.a(auth.o)(.text+0xa7): In function `LoadAuthorization':
: undefined reference to `XauReadAuth'
os/libos.a(auth.o)(.text+0xed): In function `LoadAuthorization':
: undefined reference to `XauDisposeAuth'
collect2: ld returned 1 exit status
make[3]: *** [XFree86] Error 1
make[3]: Leaving directory `/home/tom/cvs/xc/programs/Xserver'
make[2]: *** [install] Error 2
make[2]: Leaving directory `/home/tom/cvs/xc/programs'
make[1]: *** [install] Error 2
make[1]: Leaving directory `/home/tom/cvs/xc'
make: *** [install] Error 2

Is it my fault or a known problem? 
thanks in advance.

		Tom