QNX requires that _FILE_OFFSET_BITS be set prior to any system #include.
Also adjust the order of files in the amalgamation to ensure that
_FILE_OFFSET_BITS is defined before any #include, for QNX.
Do not allow temporary registers to be in use across an OP_Yield within a
co-routine.  Fix for ticket [8c63ff0eca81a9132d8].
Improved handling of constants and especially constant functions in the
ORDER BY clause of a query.  Do not optimize out "ORDER BY random()".
Fix for ticket [65bdeb9739605cc2296].