Build Failure on ports-10.6_i386: antlr4-cpp-runtime

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.6_i386
Full logs:    https://build.macports.org/builders/ports-10.6_i386-watcher/builds/12423
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    antlr4-cpp-runtime
Subport list:
	- antlr4-cpp-runtime
Variants:     None
Revision:     54a80577204a727d3f33afc5e49c64e8139ee0ad
Build time:   0:08:57
Author:       Enrico Maria Crisostomo <enrico.m.crisostomo at gmail.com>

Log from failed builds:
	Building 'antlr4-cpp-runtime' ... [ERROR]
	> maintainers: emcrisostomo at macports.org.

Broken ports:
	- antlr4-cpp-runtime

Responsible maintainers:
	- emcrisostomo at macports.org

Links to individual build jobs:
- ports-10.6_i386-builder #20747
  https://build.macports.org/builders/ports-10.6_i386-builder/builds/20747

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