[MacPorts] #43295: gmp: configure failed

[MacPorts]

#43295: gmp: configure failed
----------------------------+------------------------
  Reporter:  march.1.xue@…  |      Owner:  mcalhoun@…
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.2.1
Resolution:                 |   Keywords:
      Port:  gmp            |
----------------------------+------------------------

Comment (by jag-macports@…):

 `xcode-select --install` did the trick, thank you. Would be nice if `port`
 could detect this, but feel free to rule this user error (I should've RTFM
 with less skimming) and close this bug.

-- 
Ticket URL: <https://trac.macports.org/ticket/43295#comment:7>
MacPorts <http://www.macports.org/>
Ports system for OS X