Build Failure on ports-10.12_x86_64: GLC_lib, SimGear, VirtualPlanetBuilder, openal

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.12_x86_64
Full logs:    https://build.macports.org/builders/ports-10.12_x86_64-watcher/builds/18347
Build reason: A build was forced by 'ryandesign <ryandesign at localhost>': force build
Port list:    AntTweakBar GLC_lib ImageMagick MyPaint Pangolin InsightToolkit SoQt InsightToolkit-devel OpenSceneGraph GIMP-Lensfun Renaissance-Framework GraphicsMagick Quarter InsightToolkit314 MoltenVK InsightToolkit312 VirtualPlanetBuilder SimGear Coin Paintbrush OpenSceneGraph-devel
Subport list:
	- GLC_lib
	- Paintbrush
	- Renaissance-Framework
	- SimGear
	- VirtualPlanetBuilder
Variants:     None
Revision:     
Build time:   0:29:47
Author:       

Log from failed builds:
	Building 'GLC_lib' ... [ERROR]
	> maintainers: .
	Building 'SimGear' ... [ERROR] (failed to install dependency 'openal')
	> maintainers: .
	Building 'VirtualPlanetBuilder' ... [ERROR]
	> maintainers: ryandesign at macports.org.

Broken ports:
	- GLC_lib
	- SimGear
	- VirtualPlanetBuilder
	- openal

Responsible maintainers:
	- ryandesign at macports.org

Links to individual build jobs:
- ports-10.12_x86_64-builder #73173
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/73173
- ports-10.12_x86_64-builder #73174
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/73174
- ports-10.12_x86_64-builder #73175
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/73175
- ports-10.12_x86_64-builder #73176
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/73176
- ports-10.12_x86_64-builder #73177
  https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/73177

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