Build Failure on ports-10.6_x86_64_legacy: libphonenumber-cpp

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.6_x86_64_legacy
Full logs:    https://build.macports.org/builders/ports-10.6_x86_64_legacy-watcher/builds/15030
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    libphonenumber-cpp
Subport list:
	- libphonenumber-cpp
Variants:     None
Revision:     3ea833cb487bdc685c770e526345ea4cb2286c28
Build time:   0:06:14
Author:       David B. Evans <devans at macports.org>

Log from failed builds:
	Building 'libphonenumber-cpp' ... [ERROR]
	> maintainers: devans at macports.org.

Broken ports:
	- libphonenumber-cpp

Responsible maintainers:
	- devans at macports.org

Links to individual build jobs:
- ports-10.6_x86_64_legacy-builder #65446
  https://build.macports.org/builders/ports-10.6_x86_64_legacy-builder/builds/65446

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