[MacPorts] #70275: c-ares @1.30.0_1 build fails on 10.13.6 (was: c-ares 1.30.0_1 build fails on 10.13.6)

[MacPorts]

#70275: c-ares @1.30.0_1 build fails on 10.13.6
--------------------------+--------------------------
  Reporter:  jrandall814  |      Owner:  tobypeterson
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.9.3
Resolution:               |   Keywords:  snowleopard
      Port:  c-ares       |
--------------------------+--------------------------
Changes (by ryandesign):

 * owner:  (none) => tobypeterson
 * keywords:   => snowleopard
 * status:  new => assigned
 * port:  c-ares 1.30.0_1 => c-ares


Comment:

 Log says:

 {{{
 :info:build /usr/include/dispatch/dispatch.h:38:45: error: expected value
 in expression
 :info:build #if !defined(HAVE_UNISTD_H) || HAVE_UNISTD_H
 :info:build                                             ^
 }}}

 This is [https://github.com/c-ares/c-ares/issues/787 the issue] that
 [ticket:70246 updating to 1.31.0] should resolve.

-- 
Ticket URL: <https://trac.macports.org/ticket/70275#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS