Hi all, Could someone from the libmysqlclient contributors comment on this, and could someone complete the documentation regarding client compatiblity?
Thanks! Seb On 02/20/2013 09:31 AM, Sebastien FLAESCH wrote:
Hello, FYI, I found this statement in the doc, at the end of the C API main page: http://dev.mysql.com/doc/refman/5.6/en/c.html 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 compatible. Further, I would expect to see such note in "Building Client Programs": http://dev.mysql.com/doc/refman/5.6/en/building-clients.html Seb
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