ports : make index failed

[Pirat SRIYOTHA]

hi sirs,

after cvsup the ports tree ,  i make index but get errors.  it said

inspiron# cat /usr/ports/make-index
Script started on Mon Jan 30 07:10:38 2006
You have mail.
inspiron# uname -a
FreeBSD inspiron.thai-aec.org 6.0-STABLE FreeBSD 6.0-STABLE #3: Tue Jan 
24 18:17:06 ICT 2006     
root at inspiron.thai-aec.org:/usr/obj/usr/src/sys/INSPIRON  i386
inspiron# make index
Generating INDEX-6 - please wait../usr/local/bin/php-config: not found
grep: /usr/local/include/php/main/php_config.h: No such file or directory
make: don't know how to make describe. Stop
===> mail/thunderbird-devel failed
*** Error code 1
1 error

********************************************************************
Before reporting this error, verify that you are running a supported
version of FreeBSD (see http://www.FreeBSD.org/ports/) and that you
have a complete and up-to-date ports collection.  (INDEX builds are
not supported with partial or out-of-date ports collections -- in
particular, if you are using cvsup, you must cvsup the "ports-all"
collection, and have no "refuse" files.)  If that is the case, then
report the failure to ports at FreeBSD.org together with relevant
details of your ports configuration (including FreeBSD version,
your architecture, your environment, and your /etc/make.conf
settings, especially compiler flags and WITH/WITHOUT settings).

Note: the latest pre-generated version of INDEX may be fetched
automatically with "make fetchindex".
********************************************************************

*** Error code 1

Stop in /usr/ports.
*** Error code 1

Stop in /usr/ports.
inspiron# exit
exit

Script done on Mon Jan 30 07:37:55 2006

/etc/make.conf
X_WINDOW_SYSTEM=xorg
DOC_LANG=en_US.ISO8859-1
# added by use.perl 2006-01-13 14:51:17
PERL_VER=5.8.7
PERL_VERSION=5.8.7
FORCR_PKG_REGISTER=yes

setenv
USER=root
HOME=/root
SHELL=/bin/csh
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/usr/X11R6/bin:/root/bin
MAIL=/var/mail/root
BLOCKSIZE=K
FTP_PASSIVE_MODE=YES
TERM=xterm
HOSTTYPE=FreeBSD
VENDOR=intel
OSTYPE=FreeBSD
MACHTYPE=i386
SHLVL=1
PWD=/usr
LOGNAME=root
GROUP=wheel
HOST=inspiron.thai-aec.org
REMOTEHOST=siting.thai-aec.org
EDITOR=vi
PAGER=more
inspiron#

i have no 'refuse' file at all.  and as far as i know, php has nothing 
to do with port tree at the very beginning.  would you please clarify 
this issue for me?
thanks in advance for any comments and please cc to me since i do not 
subscribe to this list.

with best regards,
psr