help:make firefox failure.(Script "configure" failed unexpectedly. Please run the gnomelogalyzer)

[=?GB2312?B?7ZfI8OST?=]

hello list!
i was trying to install firefox.but i get some error information when i make it,
what can i do?this is the error information when make it:

===>   firefox-1.5.0.2,1 depends on executable: zip - found
===>   firefox-1.5.0.2,1 depends on executable: gmake - found
===>   firefox-1.5.0.2,1 depends on file: /usr/local/bin/perl5.8.8 - found
===>   firefox-1.5.0.2,1 depends on file:
/usr/local/bin/intltool-extract - found
===>   firefox-1.5.0.2,1 depends on file:
/usr/X11R6/libdata/pkgconfig/gnome-mime-data-2.0.pc - found
===>   firefox-1.5.0.2,1 depends on executable: pkg-config - found
===>   firefox-1.5.0.2,1 depends on shared library: jpeg.9 - found
===>   firefox-1.5.0.2,1 depends on shared library: png.5 - found
===>   firefox-1.5.0.2,1 depends on shared library: nspr4 - found
===>   firefox-1.5.0.2,1 depends on shared library: nss3 - found
===>   firefox-1.5.0.2,1 depends on shared library: Xft.2 - found
===>   firefox-1.5.0.2,1 depends on shared library: iconv.3 - found
===>   firefox-1.5.0.2,1 depends on shared library: atk-1.0.0 - found
===>   firefox-1.5.0.2,1 depends on shared library: gconf-2.4 - found
===>   firefox-1.5.0.2,1 depends on shared library: glib-2.0.0 - found
===>   firefox-1.5.0.2,1 depends on shared library: gnomevfs-2.0 - found
===>   firefox-1.5.0.2,1 depends on shared library: gtk-x11-2.0.0 - found
===>   firefox-1.5.0.2,1 depends on shared library: bonobo-2.0 - found
===>   firefox-1.5.0.2,1 depends on shared library: IDL-2.0 - found
===>   firefox-1.5.0.2,1 depends on shared library: xml2.5 - found
===>   firefox-1.5.0.2,1 depends on shared library: linc.1 - found
===>   firefox-1.5.0.2,1 depends on shared library: ORBit-2.0 - found
===>   firefox-1.5.0.2,1 depends on shared library: pango-1.0.0 - found
===>   firefox-1.5.0.2,1 depends on shared library: X11.6 - found
===>  Configuring for firefox-1.5.0.2,1
loading cache ./config.cache
checking host system type... i386-unknown-freebsd5.4
checking target system type... i386-unknown-freebsd5.4
checking build system type... i386-unknown-freebsd5.4
checking for mawk... no
checking for gawk... no
checking for nawk... nawk
checking for nsinstall... no
checking for gcc... cc
checking whether the C compiler (cc -O2 -fno-strict-aliasing -pipe  
-L/usr/X11R6/lib -Wl,-rpath,/usr/X11R6/lib/firefox) works... yes
checking whether the C compiler (cc -O2 -fno-strict-aliasing -pipe  
-L/usr/X11R6/lib -Wl,-rpath,/usr/X11R6/lib/firefox) is a
cross-compiler... no
checking whether we are using GNU C... yes
checking whether cc accepts -g... yes
checking for c++... c++
checking whether the C++ compiler (c++ -O2 -fno-strict-aliasing -pipe 
-L/usr/X11R6/lib -Wl,-rpath,/usr/X11R6/lib/firefox) works... yes
checking whether the C++ compiler (c++ -O2 -fno-strict-aliasing -pipe 
-L/usr/X11R6/lib -Wl,-rpath,/usr/X11R6/lib/firefox) is a
cross-compiler... no
checking whether we are using GNU C++... yes
checking whether c++ accepts -g... yes
checking for ranlib... ranlib
checking for as... /usr/bin/as
checking for ar... ar
checking for ld... ld
checking for strip... strip
checking for windres... no
checking whether cc understands -c and -o together... yes
checking how to run the C preprocessor... cc -E
checking how to run the C++ preprocessor... c++ -E
checking for a BSD compatible install... /usr/bin/install -c -o root -g wheel
checking whether ln -s works... yes
checking for /usr/local/bin/perl5.8.6... /usr/local/bin/perl5.8.6
checking for minimum required perl version >= 5.004...
===>  Script "configure" failed unexpectedly.
Please run the gnomelogalyzer, available from
"http://www.freebsd.org/gnome/gnomelogalyzer.sh", which will diagnose the
problem and suggest a solution. If - and only if - the gnomelogalyzer cannot
solve the problem, report the build failure to the FreeBSD GNOME team at
gnome at FreeBSD.org, and attach (a)
"/usr/ports/www/firefox/work/mozilla/config.log", (b) the output of the failed
make command, and (c) the gnomelogalyzer output. Also, it might be a good
idea to provide an overview of all packages installed on your system (i.e.
an `ls /var/db/pkg`). Put your attachment up on any website, copy-and-paste
into http://freebsd-gnome.pastebin.com, or use send-pr(1) with the attachment.
Try to avoid sending any attachments to the mailing list (gnome at FreeBSD.org),
because attachments sent to FreeBSD mailing lists are usually discarded by
the mailing list software.
*** Error code 1

Stop in /usr/ports/www/firefox.


what can i do?help me please.