ext/openssl/ossl_ssl.c: add ALPN support. [Feature #9390]
ext/openssl/extconf.rb: detect ALPN support in OpenSSL
test/openssl/test_ssl.rb: test for ALPN
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51347 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ext/openssl/ossl_ssl.c: add ALPN support. [Feature #9390]
ext/openssl/extconf.rb: detect ALPN support in OpenSSL
test/openssl/test_ssl.rb: test for ALPN
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51347 b2dd03c8-39d4-4d8f-98ff-823fe69b080e