[MacPorts] #59302: ports-10.6_x86_64-builder: builds are systematically failing due to apparent Xcode issue

[MacPorts]

#59302: ports-10.6_x86_64-builder: builds are systematically failing due to
apparent Xcode issue
--------------------------+------------------------------------------------
  Reporter:  dbevans      |      Owner:  ryandesign
      Type:  defect       |     Status:  accepted
  Priority:  Normal       |  Milestone:
 Component:               |    Version:
  buildbot/mpbb           |
Resolution:               |   Keywords:  buildbot ports-10.6_x86_64-builder
      Port:               |
--------------------------+------------------------------------------------
Changes (by ryandesign):

 * status:  assigned => accepted


Comment:

 After a Snow Leopard machine has been online for a time, MacPorts becomes
 unable to identify the Xcode version. I have been dealing with this
 problem for years, periodically needing to restart the Snow Leopard build
 workers to get things working again. We have discussed it before and have
 not figured out the cause or how to fix it. Under previous versions of
 MacPorts it would manifest differently, with the "System cc" compiler
 being selected, which still allowed some ports to build but others would
 fail. I guess the changes in MacPorts 2.6 mean it will now manifest as an
 error message about missing Xcode and all ports will fail.

 I have stopped the 10.6-x86_64 builder and will keep it offline until the
 distfiles for all the other builds that are queued have been mirrored (due
 to #59286). The 10.6-i386 builder is already offline for this reason. I
 have deleted the failcache entries for p5.30 ports on 10.6-x86_64. I have
 canceled the remaining p5.30 port builds on 10.6-x86_64 (due to #53587).

 I will need to reschedule the p5.30 builds on 10.6-x86_64.

-- 
Ticket URL: <https://trac.macports.org/ticket/59302#comment:3>
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