Some fetcher plugins (such as curl) might build upon OpenSSL to implement
HTTPS fetching. As we set (and can't unset) threading callbacks in our
openssl plugin, we must ensure that OpenSSL functions don't get called after
openssl plugin unloading.
We achieve that by loading curl and all other fetcher plugins after the base
crypto plugins, including openssl.
This script can be used in pretest.dat files to wait until an IPsec
connection becomes available. This avoids unconditional sleeps and
improves test performance.
The ipv6 tests have been updated to use the expect-connection script.
Martin Willi