Build Failure on ports-10.7_x86_64_legacy

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.7_x86_64_legacy
Full logs:    https://build.macports.org/builders/ports-10.7_x86_64_legacy-watcher/builds/23130
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    gambit-c
Subport list:
	- gambit-c
Variants:     None
Revision:     b2b4dee00ee66249e5f60176e3079b0cf7e488aa
Build time:   1:10:50
Author:       William Emerison Six <billsix at gmail.com>

Log from failed builds:

Links to individual build jobs:
- ports-10.7_x86_64_legacy-builder #97266
  https://build.macports.org/builders/ports-10.7_x86_64_legacy-builder/builds/97266

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