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(mysql.info)Applying patches

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Applying Patches
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Sometimes patches appear on the mailing list or are placed in the
patches area (http://www.mysql.com/Downloads/Patches) of the MySQL Web
site.

To apply a patch from the mailing list, save the message in which the
patch appears in a file, change into the top-level directory of your
MySQL source tree, and run these commands:

     shell> patch -p1 < patch-file-name
     shell> rm config.cache
     shell> make clean

Patches from the FTP site are distributed as plain text files or as
files compressed with `gzip'.  Apply a plain patch as shown above for
mailing list patches.  To apply a compressed patch, change into the
top-level directory of your MySQL source tree and run these commands:

     shell> gunzip < patch-file-name.gz | patch -p1
     shell> rm config.cache
     shell> make clean

After applying a patch, follow the instructions for a normal source
install, beginning with the `./configure' step.  After running the `make
install' step, restart your MySQL server.

You may need to bring down any currently running server before you run
`make install'.  (Use `mysqladmin shutdown' to do this.)  Some systems
do not allow you to install a new version of a program if it replaces
the version that is currently executing.