[MacPorts] #26513: openldap @2.4.21_1 additional variants

[MacPorts]

#26513: openldap @2.4.21_1 additional variants
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 Reporter:  djsnickles@…          |       Owner:  macports-tickets@…                   
     Type:  enhancement           |      Status:  new                                  
 Priority:  Normal                |   Milestone:                                       
Component:  ports                 |     Version:  1.9.1                                
 Keywords:  overlay, memberof     |        Port:  openldap                             
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 i added additional variants for the overlay  '—configure' options.

 for example: '--enable-memberof' = '+memberof_overlay'

 i hope everything is correct; it's my first time!

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Ticket URL: <https://trac.macports.org/ticket/26513>
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