Add note about linuxaudiodev possibly working on BSD
# directory.)
# Each line in this file describes one or more optional modules.
-# Comment out lines to suppress modules.
+# Modules enabled here will not be compiled by the setup.py script,
+# so the file can be used to override setup.py's behavior.
+
# Lines have the following structure:
#
# <module> ... [<sourcefile> ...] [<cpparg> ...] [<library> ...]
#sunaudiodev sunaudiodev.c
-# Linux specific modules -- off by default:
+# A Linux specific module -- off by default; this may also work on
+# some *BSDs.
#linuxaudiodev linuxaudiodev.c