Error compiling Xorg

[Jesús Gumbau Portales]

When I try to make install on /usr/ports/x11/xorg I get the following 
errors:

making all in programs/xgc...
making all in programs/xhost...
cc -O3 -pipe -funroll-loops -ffast-math -march=athlon-tbird -ansi 
-pedantic -Wno
-system-headers -Dasm=__asm     -Wall -Wpointer-arith -Wundef     
-I/usr/ports/x
11/xorg-clients/work/xc 
-I/usr/ports/x11/xorg-clients/work/xc/exports/include  -
I/usr/X11R6/include -DCSRG_BASED  -DFUNCPROTO=15 -DNARROWPROTO   -DTCPCONN 
-DUNI
XCONN  -DHAS_STICKY_DIR_BIT -DHAS_FCHOWN -DIPv6  -DSECURE_RPC              
-DBSD
44SOCKETS  -DXVENDORNAME='"The X.Org Foundation"' 
-DXVENDORNAMESHORT='"X.Org"' -
c xhost.c
xhost.c: In function `change_host':
xhost.c:423: error: syntax error before "siaddr"
xhost.c:434: error: `siaddr' undeclared (first use in this function)
xhost.c:434: error: (Each undeclared identifier is reported only once
xhost.c:434: error: for each function it appears in.)
xhost.c: In function `get_hostname':
xhost.c:883: error: `XServerInterpretedAddress' undeclared (first use in 
this fu
nction)
xhost.c:883: error: `sip' undeclared (first use in this function)
xhost.c:884: warning: ISO C89 forbids mixed declarations and code
xhost.c:888: error: syntax error before ')' token
*** Error code 1

Stop in /usr/ports/x11/xorg-clients/work/xc/programs/xhost.
*** Error code 1

Stop in /usr/ports/x11/xorg-clients/work/xc/programs.
*** Error code 1

Stop in /usr/ports/x11/xorg-clients.
*** Error code 1

Stop in /usr/ports/x11/xorg.


Any Idea about what is happening?