[ns] Install failed

[Sencun Zhu <szhu1@ise.gmu.edu>]

Hi, I am re-installing ns-2.1b6 in my sun solories(all the past
installings are okay) , before I run ./install, I downloaded the lastest
snapshot(two days ago) and replace ns with them. then I install, I got the
error information:

ump.o(.bss+0x28): multiple definition of `hdr_ump::offset_'
classifier-bst.o(.bss+0x20): first defined here
collect2: ld returned 1 exit status
make: *** [ns] Error 1
Ns make failed!
See http://www-mash.CS.Berkeley.EDU/ns/ns-problems.html for problems



any hints ?

Thank you

Sencun