[MacPorts] #64913: vlang fails for PowerPC: -latomic flag needed, Header file <sys/errno.h>, needed for module `sync` was not found

[MacPorts]

#64913: vlang fails for PowerPC: -latomic flag needed, Header file <sys/errno.h>,
needed for module `sync` was not found
---------------------------+-------------------------------------------
  Reporter:  barracuda156  |      Owner:  harens
      Type:  defect        |     Status:  accepted
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  powerpc, leopard, snowleopard
      Port:  vlang         |
---------------------------+-------------------------------------------

Comment (by barracuda156):

 Replying to [comment:53 harens]:
 > Thanks for testing. That seems to be the same error as before, which I
 guess makes sense since I haven't made any Rosetta modifications yet. I'll
 try and have a think about how to fix this.

 Thank you!

 > Would you be able to test the port on the systems where it worked with
 modifications? I think that was 10.5 and 10.6 PPC. Thanks.

 Sure, but by the end of month.

 P. S. There is some discussion of PPC here:
 https://github.com/vlang/v/issues/15425

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Ticket URL: <https://trac.macports.org/ticket/64913#comment:54>
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