Enable support for SSL/TLS using OpenSSL or GnuTLS libraries.
See `doc/SSL.txt` for details.
-- IPv6:
+- IPv6 (autodetected by default):
- `--enable-ipv6`
+ `--enable-ipv6` / `--disable-ipv6`
- Adds support for version 6 of the Internet Protocol.
+ Enable (disable) support for version 6 of the Internet Protocol, which should
+ be available on most modern UNIX-like operating systems by default.
## Configuration