[MacPorts] #27134: mnogosearch: message should only display when applicable

[MacPorts]

#27134: mnogosearch: message should only display when applicable
-------------------------------------+--------------------------------------
 Reporter:  ryandesign@…             |       Owner:  dbraband@…        
     Type:  defect                   |      Status:  new               
 Priority:  Normal                   |   Milestone:                    
Component:  ports                    |     Version:  1.9.1             
 Keywords:                           |        Port:  mnogosearch       
-------------------------------------+--------------------------------------
 After configuring mnogosearch, this message is displayed:

 {{{
 -------------------------------------------------------------
 Note:  if you did not select any database variants, mnogosearch
 will be built without the indexer (which may not be what you
 wanted).
 -------------------------------------------------------------
 }}}

 The message should not be displayed if I did in fact select a database
 variant.

 Additionally, if it is your intention to display this message early,
 before the user has wasted time building something possibly incorrect,
 then you should display the message at pre-configure time, not post-
 configure.

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Ticket URL: <https://trac.macports.org/ticket/27134>
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