can't build 1.0.4

[Timothy Smith]

hello there, great work on the ports!

unfortunately i'm having big problems getting the latest firefox to 
build on my 4.10 machine.
firstly i tried compiled from source off mozilla.org ftp, which failed.
i then did a cvsup and tried using portinstall, which failed also.
if you keep track of the freebsd-questions you would have seen the whole 
saga. if not look in the archives 
http://lists.freebsd.org/pipermail/freebsd-questions/ for the topic 
"can't build firefox 1.0.4 on 4.10"

i'm doing a cd /usr/src make clean right now to try clean out ANY cruft, 
but atm i just cannot get the build to work