rvm Failed to configure gdbm

Issue: https://github.com/rvm/rvm/issues/4196

brew install python --with-brewed-openssl #This can install gdbm

sudo rm -rf /usr/local/Cellar /usr/local/.git && brew cleanup #If error,try https://stackoverflow.com/questions/48228030/chown-usr-local-operation-not-permitted-issue-with-brew-update-usr-local-i

brew doctor #If there are warnings , run brew prune

sudo chown -R $(whoami):admin /usr/local

Then,

rvm reinstall 2.4.1