libpmemblk-dev 1.12.1-2 (riscv64 binary) in ubuntu mantic

 libpmemblk implements a pmem-resident array of blocks, all the same size, where
 a block is updated atomically with respect to power failure or program
 interruption (no torn blocks).
 .
 This package contains libraries and header files used for linking programs
 against libpmemblk.