Add _XOPEN_SOURCE for strptime
Add _XOPEN_SOURCE for strptime

git-svn-id: c4e9838fefcfae554524937a357000afc2bbf25b@2627 152afb58-edef-0310-8abb-c4023f1b3aa9

ctdk/lighttpd-1.4.x,ctdk/lighttpd-1.4.x,ctdk/lighttpd-1.4.x,ctdk/lighttpd-1.4.x