[MacPorts] #49531: graphite2: unistd.h cannot be found (was: putty fails to build on OS X 10.11)

[MacPorts]

#49531: graphite2: unistd.h cannot be found
--------------------------+--------------------------
  Reporter:  macports2@…  |      Owner:  ryandesign@…
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.4
Resolution:               |   Keywords:
      Port:  graphite2    |
--------------------------+--------------------------
Changes (by ryandesign@…):

 * owner:  macports-tickets@… => ryandesign@…
 * port:   => graphite2


Comment:

 Sounds like you have not installed the Xcode command line tools, which are
 required. Run "xcode-select --install". If it says the command line tools
 are already installed, download the installer from the Apple Developer web
 site and run it.

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Ticket URL: <https://trac.macports.org/ticket/49531#comment:1>
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