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.travis.yml: workaround to resolve ::1

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Container-based Trusty environment (sudo: false) does not support IPv6.
https://github.com/travis-ci/travis-ci/issues/3302

And the image has "::1  localhost ip6-localhost ip6-loopback" entry in
addition to "127.0.0.1 localhost" in /etc/hosts.
Thus when it can resolve localhost to ::1 and CI fails.

To resolve this, at least we need to modify /etc/hosts for now but we
can't modify /etc/hosts without sudo.

So I enabled sudo. As Sudo-enabled VM didn't have "::1 localhost" entry,
this change fixed the cause without touching /etc/hosts.

Since boot of `sudo: required` is slower than `sudo: false`, please revert
this commit anytime when Container-based Trusty environment is updated and
::1 issue has gone.
https://docs.travis-ci.com/user/reference/overview/

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60736 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
k0kubun 2017-11-10 11:50:00 +00:00
parent 54b8b8e4f7
commit 4d60654690
1 changed files with 1 additions and 1 deletions
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.travis.yml
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@ -19,7 +19,7 @@
language: c
dist: trusty
sudo: false
sudo: required
compiler:
- gcc