[Tile-serving] [osm2pgsql] Replace pthread and boost::thread with std::async (#498)

[Sarah Hoffmann]

> @@ -116,7 +116,7 @@ if (NOT Boost_ADDITIONAL_VERSIONS)
>  endif()
>  
>  # first try to find the version
> -find_package(Boost 1.50 REQUIRED COMPONENTS system filesystem thread ${BOOST_EXTRA})
> +find_package(Boost 1.50 REQUIRED COMPONENTS system filesystem ${BOOST_EXTRA})

Done.

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/osm2pgsql/pull/498/files#r44226654
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