Github user kuien commented on the issue:
https://github.com/apache/incubator-hawq/pull/1315
CI failed with strange error, it seems irrelevant to the pr, is it right?
> configure: error: Please install apr from http://apr.apache.org/ and add
dir of 'apr-1-config' to env variable
'/Users/travis/.rvm/gems/ruby-2.4.2/bin:/Users/travis/.rvm/gems/ruby-2.4.2@global/bin:/Users/travis/.rvm/rubies/ruby-2.4.2/bin:/Users/travis/.rvm/bin:/Users/travis/bin:/Users/travis/.local/bin:/Users/travis/.nvm/versions/node/v6.11.4/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin'.
>
> The command "./configure" failed and exited with 1 during .
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