PostgreSQL をインストールする前に依存関係やオプションを確認する % port variants postgresql84 Password: postgresql84 has the variants: krb5: add support for Kerberos 5 authentication perl: add Perl support python: add support for python tcl: add Tcl support universal: Build for multiple architectures % port deps postgresql84 Full Name: postgresql84 @8.4.3 Build Dependencies: bison Library Dependencies: readline, openssl, zl