[MacPorts] #69190: compiler.blacklist does not work correctly now and prohibits new Clangs on 10.6 Intel

[MacPorts]

#69190: compiler.blacklist does not work correctly now and prohibits new Clangs on
10.6 Intel
---------------------------+---------------------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  base          |    Version:  2.9.0
Resolution:                |   Keywords:  x86_64, snowleopard
      Port:                |
---------------------------+---------------------------------

Comment (by kencu):

 if all the possible compilers are blacklisted:
 {{{
 Warning: All compilers are either blacklisted or unavailable; defaulting
 to first fallback option
 }}}

 base starts into the fallback compiler list.

 You can read about that in portconfigure.tcl

-- 
Ticket URL: <https://trac.macports.org/ticket/69190#comment:2>
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