The availability of socketbits.h?

[Xu Qiang]

Hi, all: 

I am compiling NNGS (No Name Go Server) code in my FreeBSD 5.3 machine. Yet, I came across the following error: 
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gcc -traditional-cpp -Wall -DFREEBSD -c network.c
network.c:23: socketbits.h: No such file or directory
gmake: *** [network.o] Error 1
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I have searched for this file in my system, but can't find it. 

To have it present, which software must I install?

Regards,
Xu Qiang