[MacPorts] #22419: variant_isset does not work for default_variants

[MacPorts]

#22419: variant_isset does not work for default_variants
----------------------------------+-----------------------------------------
 Reporter:  takeshi@…             |       Owner:  macports-tickets@…                   
     Type:  defect                |      Status:  new                                  
 Priority:  Normal                |   Milestone:                                       
Component:  base                  |     Version:  1.8.1                                
 Keywords:                        |        Port:                                       
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 When using the default variants set by platform
 it seems that one should write

 {{{
 if {[variant_isset gcc42] || (${os.platform}=="darwin" &&
 ${os.major}>=10)} {
 # zap
 }
 # zap
 platform darwin 10 {}
 if {[variant_isset darwin_10]} {
    default_variants +gcc42
 }
 }}}

 I would expect default_variants set by platform is valid
 when variant_isset is called so variant_isset should be true
 without the second condition on  a machine running Snow Leopard.
 Thus
 }}}

 in place of

 {{{
 if {[variant_isset gcc42]} {
 # zap
 }
 }}}

 should be sufficient.
 The default variant appears to be selected so variant_isset needs fixing.

-- 
Ticket URL: <http://trac.macports.org/ticket/22419>
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