Don't use the hard-coded libmysqlclient_r name for the client library,
because it is obsolete in 5.7. Instead, if the client library path is
specified explicitly with --with-mysql-libs, try both libmysqlclient_r
and libmysqlclient in that order.
The SB_ATTRIBUTE_FORMAT() now expands to __attribute__((format...) on
platforms that support it. Fixed a number of inconsistencies between
format string and arguments revealed by the format attribute.
and
LP#1412488: lrand48() doesn't scale well on highly concurrent platforms
Use re-entrant versions of standard RNG functions with thread-local
states. Seed thread-local RNGs from the RNG of the thread invoking
sb_thread_create() (i.e. the main thread).
The main thread RNG is now always seeded from timer, unless --rand-seed
is specified. Which obsoletes --rand-init, so it has been removed.
