binutils-multiarch-dev 2.34-6ubuntu1 (riscv64 binary) in ubuntu focal

 This package includes header files, static and shared libraries necessary
 to build programs which use the GNU BFD library for multi-arch targets,
 which is part of binutils. Note that building Debian packages which depend
 on the shared libbfd is Not Allowed.
 .
 NORMAL USERS SHOULD NOT INSTALL THIS PACKAGE. It's meant only for those
 requiring support for reading info from binaries from other architectures.