On glibc 2.20+, the _BSD_SOURCE and _SVID_SOURCE feature test macros are
deprecated as of glibc 2.19.90 (2.20 devel), we define _DEFAULT_SOURCE
instead.
(fixed upstream)
https://groups.google.com/forum/#!topic/golang-codereviews/S4TARFCxu2k
Signed-off-by: Amy Fong <amy.fong@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>