Code review comment for lp:~percona-dev/percona-server/5.1.54-remove_warnings-yasufumi

> e.g.
> many of
> "warning: ignoring return value of 'fwrite', declared with attribute warn_unused_result"
> are from normal mysql code.

> Your environment seems more looser than mine. :-)

See http://bugs.mysql.com/bug.php?id=58402.

Most likely it's a bug in the system headers on your machine.