/usr/include/sys. Specifically we need /usr/include/machine
since "syslog.h" includes "machine/ansi.h". To be safe we
translate all of /usr/include/* and /usr/include/*/*.
sample error case:
echo "require 'syslog.ph';" | /usr/bin/perl
will fail when syslog.ph tries to include machine/ansi.ph
Submitted by: Doug Ambrisko