Can UNIX pipe connections be compiled?

[Guy Harris]

>However, let's not forget that member of the pipe family that is a
>certain member of the filesystem, namely, the "named pipe".  

It may be a member of the file system, but in many flavors of UNIX -
including SunOS and, I think, S5R4 - a named pipe may have a *name*
that's in the file system, but I/O to or from a named pipe doesn't go
through the file system.