Build Failure on ports-10.9_x86_64: sentencepiece

[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/29689
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    sentencepiece
Subport list:
	- sentencepiece
Variants:     None
Revision:     f640321eca9b0fdf12353a7c33f585757863eb8a
Build time:   0:02:56
Author:       Renee Otten <reneeotten at macports.org>

Log from failed builds:
	Building 'sentencepiece' ... [ERROR]
	> maintainers: .

Broken ports:
	- sentencepiece

Links to individual build jobs:
- ports-10.9_x86_64-builder #106395
  https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/106395

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