[MacPorts] #55415: cmake @3.10.1 does not build on PPC Tiger, Mac OS X 10.4.11, due to various issues building libuv

[MacPorts]

#55415: cmake @3.10.1 does not build on PPC Tiger, Mac OS X 10.4.11, due to various
issues building libuv
------------------------+-----------------------
  Reporter:  ballapete  |      Owner:  michaelld
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.4.2
Resolution:             |   Keywords:  tiger
      Port:  cmake      |
------------------------+-----------------------

Comment (by ballapete):

 Only seven C header files use `__DARWIN_UNIX03`:
 {{{
 /usr/include/assert.h
 /usr/include/stdio.h
 /usr/include/stdlib.h
 /usr/include/sys/cdefs.h
 /usr/include/sys/errno.h
 /usr/include/time.h
 /usr/include/unistd.h
 }}}

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Ticket URL: <https://trac.macports.org/ticket/55415#comment:28>
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