port, you may be disappointed to find that https et al won't work. The default install does not include support for ssl, which is a variant.
However, if you already have curl installed you may have to uninstall it first.
sudo port uninstall curlMoreover, if you have multiple versions installed, you may have to uninstall the default - in my case 7.17.0_0 (don't forget the @ symbol)
sudo port uninstall curl @7.17.0_0Finally, reinstall with the ssl variant:
sudo port install curl +ssl