* Add patches to fix build problem with OpenSSL 1.0.0 beta and later.
* Generase "-DUSE_SSL" instead of "-DSSL". Similar changes are CANNA
and ZLIB. (In the case of ZLIB, it could be change to use HAVE_ZLIB_H.)
* Split Makefile to use hacks.mk and options.mk.
* And miscellaneous pkglint clean up.
There should be no functional change and fix PR pkg/42452.
jails which don't have IPv6 addresses even if the same package can be
used on normal system.
Include openssl/dsa.h to get struct dsa_st on newer OpenSSL versions.
