getprocid C call

[Christian Jutras]

I have tried to find the *getprocid()* in Debian and could not find it, nor
any equivalent. The *getproid()*  function call is a standard ANSI C, is
there any reason for Debian (and all other Linux I looked in) not to
implement this function. The Debian I'm using is based on Linux 2.6.22.18.