failed installation

[Rumko]

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these are a few of the last line i get when trying to compile firefox from 
ports ... what to do to fix it?
using FreeBSD 4.9-STABLE

gmake[4]: Entering directory 
`/usr/ports/www/firefox/work/mozilla/security/nss/cmd/shlibsign/mangle'
gcc -o FreeBSD4.9_OPT.OBJ/mangle -O -fPIC -ansi -Wall -DFREEBSD 
- -DHAVE_STRERROR -DHAVE_BSD_FLOCK -DXP_UNIX -DSHLIB_SUFFIX=\"so\" 
- -DSHLIB_PREFIX=\"lib\" -UDEBUG -DNDEBUG -D_THREAD_SAFE -D_REENTRANT 
- -I/usr/X11R6/include -I/usr/ports/www/firefox/work/mozilla/dist/include  
- -I../../../../../dist/public/nss -I../../../../../dist/private/nss 
- -I../../../../../dist/include 
- -I/usr/ports/www/firefox/work/mozilla/dist/include/nspr 
- -I/usr/ports/www/firefox/work/mozilla/dist/include/dbm  
FreeBSD4.9_OPT.OBJ/mangle.o  /usr/ports/www/firefox/work/mozilla/dist/lib/libsmime.a /usr/ports/www/firefox/work/mozilla/dist/lib/libssl.a /usr/ports/www/firefox/work/mozilla/dist/lib/libnss.a /usr/ports/www/firefox/work/mozilla/dist/lib/libssl.a /usr/ports/www/firefox/work/mozilla/dist/lib/libsectool.a /usr/ports/www/firefox/work/mozilla/dist/lib/libpkcs12.a /usr/ports/www/firefox/work/mozilla/dist/lib/libpkcs7.a /usr/ports/www/firefox/work/mozilla/dist/lib/libcerthi.a /usr/ports/www/firefox/work/mozilla/dist/lib/libpk11wrap.a /usr/ports/www/firefox/work/mozilla/dist/lib/libcryptohi.a /usr/ports/www/firefox/work/mozilla/dist/lib/libcerthi.a /usr/ports/www/firefox/work/mozilla/dist/lib/libnsspki.a /usr/ports/www/firefox/work/mozilla/dist/lib/libpk11wrap.a /usr/ports/www/firefox/work/mozilla/dist/lib/libsoftokn.a /usr/ports/www/firefox/work/mozilla/dist/lib/libcertdb.a /usr/ports/www/firefox/work/mozilla/dist/lib/libnsspki.a /usr/ports/www/firefox/work/mozilla/dist/lib/libnssdev.a /usr/ports/www/firefox/work/mozilla/dist/lib/libnssb.a /usr/ports/www/firefox/work/mozilla/dist/lib/libswfci.a /usr/ports/www/firefox/work/mozilla/dist/lib/libfreebl.a /usr/ports/www/firefox/work/mozilla/dist/lib/libsecutil.a /usr/ports/www/firefox/work/mozilla/dist/lib/libdbm.a  
- -L/usr/ports/www/firefox/work/mozilla/dist/lib -lplc4 -lplds4 -lnspr4  
- -pthread
../../../../coreconf/nsinstall/FreeBSD4.9_OPT.OBJ/nsinstall -R -m 775 
FreeBSD4.9_OPT.OBJ/mangle /usr/ports/www/firefox/work/mozilla/dist/bin
gmake[4]: Leaving directory 
`/usr/ports/www/firefox/work/mozilla/security/nss/cmd/shlibsign/mangle'
FreeBSD4.9_OPT.OBJ/shlibsign -v 
- -i /usr/ports/www/firefox/work/mozilla/dist/lib/libsoftokn3.so
Segmentation fault (core dumped)
gmake[3]: *** [/usr/ports/www/firefox/work/mozilla/dist/lib/libsoftokn3.chk] 
Error 139
gmake[3]: Leaving directory 
`/usr/ports/www/firefox/work/mozilla/security/nss/cmd/shlibsign'
gmake[2]: *** [libs] Error 2
gmake[2]: Leaving directory 
`/usr/ports/www/firefox/work/mozilla/security/manager'
gmake[1]: *** [tier_40] Error 2
gmake[1]: Leaving directory `/usr/ports/www/firefox/work/mozilla'
gmake: *** [default] Error 2
*** Error code 2

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

Stop in /usr/ports/www/firefox.
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