Due to the extent of aliasing violations in the MySQL source
code, at this time it is safer to disable strict aliasing related
optimizations in release builds.

As of this patch, only GCC enables strict aliasing by default.
Hence, use the -fno-strict-aliasing option to disable the
aliasing rules.

cmake/build_configurations/mysql_release.cmake:
  Add -fno-strict-aliasing to release builds.