[Merge] lp:~khurshid-alam/indicator-sound/fix-build-impish into lp:indicator-sound

[Gunnar Hjalmarsson]

Review: Needs Fixing

I built it successfully on multiple archs:

https://launchpad.net/~gunnarhj/+archive/ubuntu/indicator-sound/+packages

So I'm ready to sponsor provided that you

* address Dmitry's questions/suggestions, and

* summarize the changes in a proper d/changelog entry.
-- 
https://code.launchpad.net/~khurshid-alam/indicator-sound/fix-build-impish/+merge/409379
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