Could someone from the libmysqlclient contributors comment on this, and
could someone complete the documentation regarding client compatiblity?
On 02/20/2013 09:31 AM, Sebastien FLAESCH wrote:
> FYI, I found this statement in the doc, at the end of the C API main page:
> If, after an upgrade, you experience problems with compiled client
> programs, such as Commands out of sync or unexpected core dumps, you
> probably have used old header or library files when compiling your
> programs. In this case, check the date for your mysql.h file and
> libmysqlclient.a library to verify that they are from the new MySQL
> distribution. If not, recompile your programs with the new headers and
> libraries. Recompilation might also be necessary for programs compiled
> against the shared client library if the library major version number
> has changed (for example from libmysqlclient.so.15 to libmysqlclient.so.16.
> This sounds like guessing/hoping that the a client program compiled/linked
> with older headers/libmysqlclient can eventually work with a more recent
> client lib.
> There should be a clear rule for that.
> A simple rule could be that it's mandatory to recompile when upgrading to
> a new production release (5.5 to 5.6), even if the client libs are still
> Further, I would expect to see such note in "Building Client Programs":