p4raw-id: //depot/perl@17821
C<getppid()> return different values from different threads. In order to
be portable, this behavior is not reflected by the perl-level function
C<getppid()>, that returns a consistent value across threads. If you want
-to call the underlying C<getppid()>, consider using C<Inline::C> or
-another way to call a C library function.
+to call the underlying C<getppid()>, you may use the CPAN module
+C<Linux::Pid>.
=item getpriority WHICH,WHO
C<getppid()> return different values from different threads. In order to
be portable, this behavior is not reflected by C<$$>, whose value remains
consistent across threads. If you want to call the underlying C<getpid()>,
-consider using C<Inline::C> or another way to call a C library function.
+you may use the CPAN module C<Linux::Pid>.
=item $REAL_USER_ID