Build with liburcu, userspace RCU
BIND needs a collection of standard lock-free data structures, which we can find in liburcu, along with its RCU safe memory reclamation machinery, which we will use instead of the home-grown isc_qsbr.
Add the build machinery, release notes, and updated build instructions for liburcu
, specifically its QSBR variant.
Closes #3935 (closed)
Edited by Tony Finch