Bug fix for Dec OSF on Alpha.

Minor bug fix for server RPM.
Tweak RPM support for mysqld-max.


configure.in:
  Try to identify FIND_PROC for Cygwin.  Thanks to Pete French
  <pfrench@firstcallgroup.co.uk> for the initial patch.
  
  Add -mieee to C(XX)FLAGS on Dec OSF for alpha, to fix bug w/ floating
  point arithmetic.  Thanks to nick@netability.ie for the heads up.
  
  Don't make mysql-test depend on --with-bench; always build it.  Thanks
  to smurf@play.smurf.noris.de for the patch.
include/global.h:
  Fix #defines if we are using __CYGWIN__.  Thanks to Pete French
  <pfrench@firstcallgroup.co.uk> for the initial patch.
support-files/mysql.spec.sh:
  Change %preun script so that it doesn't shut down mysqld after an
  upgrade.  Thanks to Andy Dustman for the patch.
  
  Add a %post Max script to restart mysqld after upgrading to mysqld-max.