Build Failure on ports-10.13_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.13_x86_64
Full logs:    https://build.macports.org/builders/ports-10.13_x86_64-watcher/builds/20660
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    SDRangel
Subport list:
	- SDRangel
Variants:     None
Revision:     e139e685401bf2bea96a938f204b15c791d22b92
Build time:   0:32:08
Author:       Michael Dickens <michaelld at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.13_x86_64-builder #72158
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/72158

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MacPorts Buildbot
https://build.macports.org/