[Buildroot] [PATCH 1/1] package/zstd: fix dynamic build without threads

[Norbert Lange]

Hello,

the 1.5.0 upgrade was from a patch series that hasn't been fully applied,
the rest of the series should fix that.

http://lists.busybox.net/pipermail/buildroot/2021-June/312877.html

PS. dont know how to reply to a ML entry that did not end up in my inbox