lib/rsa/rsa-sign.c:279:21: error: dereferencing pointer to incomplete type 'RSA {aka struct rsa_st}'
if (BN_num_bits(key->e) > 64)
^~
scripts/Makefile.host:134: recipe for target 'tools/lib/rsa/rsa-sign.o' failed
通過降級openssl解決
sudo apt install libssl1.0-dev