compiling NOV nn on Linux

root (root@nospam.blender.digital.com.au)
Fri, 24 Mar 1995 11:04:36 +1000 (EST)

I'm trying to compile NOV nn on Linux, and I'm getting the error below,
any suggestions? I don't understand C well enough to work this out.

# make client
make -f ymakefile client
make[1]: Entering directory `/root/nn/nn-6.5.0.b3'
gcc -Iconf -O6 -O2 -c nn.c -o nn.o
In file included from config.h:499,
from nn.c:7:
global.h:96: macro `atoi' used without args
global.h:97: macro `atol' used without args
make[1]: *** [nn.o] Error 1
make[1]: Leaving directory `/root/nn/nn-6.5.0.b3'
make: *** [client] Error 2