Pullup ticket #5386 - requested by sevan
net/iperf3: build fix

Revisions pulled up:
- net/iperf3/Makefile                                          1.5

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  Module Name:    pkgsrc
  Committed By:  jperkin
  Date:          Fri Apr 28 14:12:14 UTC 2017

  Modified Files:
          pkgsrc/net/iperf3: Makefile

  Log Message:
  Requires C99 for some math functions.

(bsiegert)