[MacPorts] #60385: openssh filed to build on leopard powerpc

[MacPorts]

#60385: openssh filed to build on leopard powerpc
----------------------+-----------------------------
  Reporter:  bryancn  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.2
Resolution:           |   Keywords:  leopard powerpc
      Port:  openssh  |
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Comment (by kencu):

 that particular error, with {{{"^"}}} is because Leopard doesn't come with
 "blocks".

 It can be fixed in many cases using the port libblocksruntime. I can't
 recall if I did this on PPC with gcc yet...I do it on 10.4 and 10.5 Intel
 sustems using clang, and on clang you use the "-fblocks" flag.

 I think the keychain approach is a quagmire... I hope you know how to hold
 back a port if you're using ppc leopard, and you may get some inspiration
 from my LeopardPorts overlay.

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Ticket URL: <https://trac.macports.org/ticket/60385#comment:6>
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