To compile C code that uses the multiprocessing utilities, use the command as follows.
For example, to compile the source code in a file called prog.c and to
obtain the executable in file called prog you would enter the following IRIX
command,
cc prog.c -o prog -lm
If you plan to use the debugger (dbx, described in the next section)
use the following command for compilation
cc -g prog.c -o prog -lm