[MacPorts] #26568: Updated yap portfile

[MacPorts]

#26568: Updated yap portfile
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 Reporter:  pmoura@…             |       Owner:  macports-tickets@…                   
     Type:  update               |      Status:  new                                  
 Priority:  Normal               |   Milestone:                                       
Component:  ports                |     Version:  1.9.1                                
 Keywords:  haspatch maintainer  |        Port:  yap                                  
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Comment(by ryandesign@…):

 I am not a YAP user so you will have to bear with me. :) None of these
 variants add dependencies, so they appear to just be adding internal YAP
 features. Is there any disadvantage to enabling them all the time, or any
 advantage to disabling them?

 For example, you have defined a variant "tabling" which is in the
 default_variants. Is there any reason why a user would ever want to
 disable this?

 And you have defined the variant "condor" but it's not on by default. Why
 would a user not want this?

 Just trying to understand why YAP is different from other software, where
 we prefer to always compile in all possible options (unless they bring in
 big dependencies, in which case we might make variants).

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Ticket URL: <https://trac.macports.org/ticket/26568#comment:5>
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