Build Failure on ports-10.9_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.9_x86_64
Full logs:    https://build.macports.org/builders/ports-10.9_x86_64-watcher/builds/15880
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    gnss-sdr volk-gnss-sdr
Subport list:
	- gnss-sdr-devel
	- gnss-sdr-next
Variants:     None
Revision:     5bd7b783ae44d3d21b0e851714f73b5fc1d4981a
Build time:   0:26:43
Author:       Ryan Schmidt <ryandesign at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.9_x86_64-builder #59546
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/59546
- ports-10.9_x86_64-builder #59547
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/59547

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