unknown opcode

[Jeffrey_Kutcher@enron.net]

g++ -D_REENTRANT -g -DUSE_PTHREADS -Wall   -I ../build -DUSE_PTHREADS -c -o
obj.debug.sun4u/Data.o Data.cxx
/var/tmp/cc6xf4j2.s: Assembler messages:
/var/tmp/cc6xf4j2.s:11840: Error: Unknown opcode: `lock'
/var/tmp/cc6xf4j2.s:11840: Error: Unknown opcode: `incl'
/var/tmp/cc6xf4j2.s:12589: Error: Unknown opcode: `lock'
/var/tmp/cc6xf4j2.s:12589: Error: Unknown opcode: `decl'
/var/tmp/cc6xf4j2.s:12589: Error: Unknown opcode: `sete'
make: *** [obj.debug.sun4u/Data.o] Error 1

g++ --version
2.95.2

uname -a
SunOS bart 5.7 Generic_106541-12 sun4u sparc SUNW,Ultra-60

To reproduce:

go to http://www.vovida.org/
click "Download"
click "Protocols"
click "COPS"
click "cops 1.0.0"
save cops-1.0.0.tar.gz
gunzip cops-1.0.0.tar.gz
tar xvf  cops-1.0.0.tar
cd cops1.0
cd util
make

bug will be reproduced.