Implementation notes: riscv64, riscvunleashed000, crypto_stream/tango642

Computer: riscvunleashed000
Architecture: riscv64
CPU ID: unknown CPU ID
SUPERCOP version: 20210326
Operation: crypto_stream
Primitive: tango642

Compiler output

Implementation: ref
Security model: constbranchindex
Compiler: clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE
try.c: /usr/bin/ld: libcrypto_stream_tango642.a(stream.o): in function `crypto_stream_tango642_ref_constbranchindex':
try.c: stream.c:(.text+0x...): undefined reference to `tango642_init'
try.c: /usr/bin/ld: libcrypto_stream_tango642.a(xor.o): in function `crypto_stream_tango642_ref_constbranchindex_xor':
try.c: xor.c:(.text+0x...): undefined reference to `tango642_init'
try.c: clang: error: linker command failed with exit code 1 (use -v to see invocation)

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
clang -mcpu=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments -fPIC -fPIE ref