Build Failure on ports-10.15_x86_64: graphviz-gui-devel

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.15_x86_64
Full logs:    https://build.macports.org/builders/ports-10.15_x86_64-watcher/builds/2017
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    graphviz-devel graphviz
Subport list:
	- graphviz-gui-devel
Variants:     None
Revision:     6804b17829f0cbecf80b5e2a3db65f2feb95f7b5
Build time:   0:14:40
Author:       Ryan Schmidt <ryandesign at macports.org>

Log from failed builds:
	Building 'graphviz-gui-devel' ... [ERROR]
	> maintainers: ryandesign at macports.org.

Broken ports:
	- graphviz-gui-devel

Responsible maintainers:
	- ryandesign at macports.org

Links to individual build jobs:
- ports-10.15_x86_64-builder #20238
  https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/20238

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