ptpclock: Only include unistd.h if found
authorNirbheek Chauhan <nirbheek@centricular.com>
Sat, 13 Feb 2016 01:12:06 +0000 (06:42 +0530)
committerTim-Philipp Müller <tim@centricular.com>
Sat, 20 Feb 2016 10:07:31 +0000 (10:07 +0000)
commitfd823ed12980e1a66808c158bd6affd1162d8359
treeb95fae97ed5cb6dab3a9309a74d959e0bbd1dc26
parentc27e70e83fe9539e3cb3fa0bdac14743a7f6a76b
ptpclock: Only include unistd.h if found

unistd.h is not provided by the  Microsoft Visual C++ compiler. It instead
provides the necessary defines through io.h
libs/gst/net/gstptpclock.c