[Buildroot] [PATCH] json-c: fix build when no thread support is available

[Peter Korsgaard]

>>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni at free-electrons.com> writes:

 Thomas> Fixes
 Thomas> http://autobuild.buildroot.org/results/1d9a2e44da3aa627265b03763ca324c609c0c61c/build-end.log.

Committed, thanks.

-- 
Bye, Peter Korsgaard