Created attachment 231154 [details] 0001-devel-boost-libs-fix-consumer-builds-for-libressl With the latest LibreSSL, compiling software using boost/asio for ssl gives build errors like this: --- In file included from /usr/local/include/boost/asio/ssl.hpp:18: In file included from /usr/local/include/boost/asio/ssl/context.hpp:757: /usr/local/include/boost/asio/ssl/impl/context.ipp:395:32: error: member access into incomplete type 'SSL_CTX' (aka 'ssl_ctx_st') void* cb_userdata = handle_->default_passwd_callback_userdata; ^ --- The attached patch fixes this for me.