libhypre64-dev 2.26.0-3 (riscv64 binary) in ubuntu lunar

 Hypre is a set of matrix preconditioning libraries to aid in the
 solution of large systems of linear equations.
 .
 This package contains the headers and symlinks necessary to develop
 programs which use hypre with 64-bit integers for both HYPRE_BigInt
 and HYPRE_Int (--with-bigint).