Following error output occurs when trying to compile websocketpp's example "debug_client" with wolfssl:
(The example is copied to folder examples/debug_client)
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_init.hpp:98:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:29,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/openssl_init.ipp: In constructor ‘asio::ssl::detail::openssl_init_base::do_init::do_init()’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/openssl_init.ipp:54:54: error: ‘sk_SSL_COMP_new_null’ was not declared in this scope
     null_compression_methods_ = sk_SSL_COMP_new_null();
                                                      ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/openssl_init.ipp: In destructor ‘asio::ssl::detail::openssl_init_base::do_init::~do_init()’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/openssl_init.ipp:63:47: error: ‘sk_SSL_COMP_free’ was not declared in this scope
     sk_SSL_COMP_free(null_compression_methods_);
                                               ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/openssl_init.ipp:87:29: error: expected id-expression before ‘;’ token
     ::CONF_modules_unload(1);
                             ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/openssl_init.ipp:91:23: error: expected id-expression before ‘;’ token
     ::ENGINE_cleanup();
                       ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:26:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/error.hpp: At global scope:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/error.hpp:47:31: error: ‘ERR_LIB_SSL’ was not declared in this scope
   stream_truncated = ERR_PACK(ERR_LIB_SSL, 0, SSL_R_SHORT_READ)
                               ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/error.hpp:47:47: error: ‘SSL_R_SHORT_READ’ was not declared in this scope
   stream_truncated = ERR_PACK(ERR_LIB_SSL, 0, SSL_R_SHORT_READ)
                                               ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/error.hpp:47:63: error: ‘ERR_PACK’ was not declared in this scope
   stream_truncated = ERR_PACK(ERR_LIB_SSL, 0, SSL_R_SHORT_READ)
                                                               ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In constructor ‘asio::ssl::context::context(asio::ssl::context_base::method)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:84:29: error: ‘::SSLv2_method’ has not been declared
     handle_ = ::SSL_CTX_new(::SSLv2_method());
                             ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:103:29: error: ‘::SSLv3_method’ has not been declared
     handle_ = ::SSL_CTX_new(::SSLv3_method());
                             ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In destructor ‘asio::ssl::context::~context()’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:233:32: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     void* cb_userdata = handle_->default_passwd_callback_userdata;
                                ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:244:14: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
       handle_->default_passwd_callback_userdata = 0;
              ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:248:37: error: ‘SSL_CTX_get_app_data’ was not declared in this scope
     if (SSL_CTX_get_app_data(handle_))
                                     ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:254:38: error: ‘SSL_CTX_set_app_data’ was not declared in this scope
       SSL_CTX_set_app_data(handle_, 0);
                                      ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In member function ‘asio::error_code asio::ssl::context::clear_options(asio::ssl::context_base::options, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:287:12: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     handle_->comp_methods = SSL_COMP_get_compression_methods();
            ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In member function ‘asio::error_code asio::ssl::context::set_options(asio::ssl::context_base::options, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:319:12: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     handle_->comp_methods =
            ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In member function ‘asio::error_code asio::ssl::context::use_certificate(const asio::const_buffer&, asio::ssl::context_base::file_format, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:487:9: error: ‘::SSL_CTX_use_certificate_ASN1’ has not been declared
     if (::SSL_CTX_use_certificate_ASN1(handle_,
         ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In member function ‘asio::error_code asio::ssl::context::use_certificate_chain(const asio::const_buffer&, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:584:40: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     pem_password_cb* callback = handle_->default_passwd_callback;
                                        ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:585:32: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     void* cb_userdata = handle_->default_passwd_callback_userdata;
                                ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:593:29: error: ‘ERR_R_PEM_LIB’ was not declared in this scope
       ec = asio::error_code(ERR_R_PEM_LIB,
                             ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:610:16: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     if (handle_->extra_certs)
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:612:33: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
       ::sk_X509_pop_free(handle_->extra_certs, X509_free);
                                 ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:613:14: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
       handle_->extra_certs = 0;
              ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In member function ‘asio::error_code asio::ssl::context::use_private_key(const asio::const_buffer&, asio::ssl::context_base::file_format, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:688:40: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     pem_password_cb* callback = handle_->default_passwd_callback;
                                        ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:689:32: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     void* cb_userdata = handle_->default_passwd_callback_userdata;
                                ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:699:27: error: ‘::d2i_PrivateKey_bio’ has not been declared
       evp_private_key.p = ::d2i_PrivateKey_bio(bio.p, 0);
                           ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:702:27: error: ‘::PEM_read_bio_PrivateKey’ has not been declared
       evp_private_key.p = ::PEM_read_bio_PrivateKey(
                           ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In member function ‘asio::error_code asio::ssl::context::use_rsa_private_key(const asio::const_buffer&, asio::ssl::context_base::file_format, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:755:40: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     pem_password_cb* callback = handle_->default_passwd_callback;
                                        ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:756:32: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
     void* cb_userdata = handle_->default_passwd_callback_userdata;
                                ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:766:27: error: ‘::d2i_RSAPrivateKey_bio’ has not been declared
       rsa_private_key.p = ::d2i_RSAPrivateKey_bio(bio.p, 0);
                           ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:769:27: error: ‘::PEM_read_bio_RSAPrivateKey’ has not been declared
       rsa_private_key.p = ::PEM_read_bio_RSAPrivateKey(
                           ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:782:11: error: ‘::SSL_CTX_use_RSAPrivateKey’ has not been declared
       if (::SSL_CTX_use_RSAPrivateKey(handle_, rsa_private_key.p) == 1)
           ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In member function ‘asio::error_code asio::ssl::context::do_set_verify_callback(asio::ssl::detail::verify_callback_base*, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:945:35: error: ‘SSL_CTX_get_app_data’ was not declared in this scope
   if (SSL_CTX_get_app_data(handle_))
                                   ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:951:41: error: ‘SSL_CTX_set_app_data’ was not declared in this scope
   SSL_CTX_set_app_data(handle_, callback);
                                         ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:954:7: error: ‘::wolfSSL_CTX_get_verify_mode’ has not been declared
       ::SSL_CTX_get_verify_mode(handle_),
       ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In static member function ‘static int asio::ssl::context::verify_callback_function(int, X509_STORE_CTX*)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:971:40: error: ‘SSL_CTX_get_app_data’ was not declared in this scope
         if (SSL_CTX_get_app_data(handle))
                                        ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp: In member function ‘asio::error_code asio::ssl::context::do_set_password_callback(asio::ssl::detail::password_callback_base*, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:994:31: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
   void* old_callback = handle_->default_passwd_callback_userdata;
                               ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:784:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/context.ipp:995:10: error: invalid use of incomplete type ‘SSL_CTX {aka struct WOLFSSL_CTX}’
   handle_->default_passwd_callback_userdata = callback;
          ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:113:16: note: forward declaration of ‘SSL_CTX {aka struct WOLFSSL_CTX}’
 typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/rfc2818_verification.hpp:97:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:23,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp: In member function ‘bool asio::ssl::rfc2818_verification::operator()(bool, asio::ssl::verify_context&) const’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:59:3: error: ‘GENERAL_NAMES’ was not declared in this scope
   GENERAL_NAMES* gens = static_cast<GENERAL_NAMES*>(
   ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:59:18: error: ‘gens’ was not declared in this scope
   GENERAL_NAMES* gens = static_cast<GENERAL_NAMES*>(
                  ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:59:37: error: ‘GENERAL_NAMES’ does not name a type
   GENERAL_NAMES* gens = static_cast<GENERAL_NAMES*>(
                                     ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:59:50: error: expected ‘>’ before ‘*’ token
   GENERAL_NAMES* gens = static_cast<GENERAL_NAMES*>(
                                                  ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:59:50: error: expected ‘(’ before ‘*’ token
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:59:51: error: expected primary-expression before ‘>’ token
   GENERAL_NAMES* gens = static_cast<GENERAL_NAMES*>(
                                                   ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:60:58: error: expected ‘)’ before ‘;’ token
       X509_get_ext_d2i(cert, NID_subject_alt_name, 0, 0));
                                                          ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:66:7: error: ‘ASN1_IA5STRING’ was not declared in this scope
       ASN1_IA5STRING* domain = gen->d.dNSName;
       ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:66:23: error: ‘domain’ was not declared in this scope
       ASN1_IA5STRING* domain = gen->d.dNSName;
                       ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:66:39: error: ‘struct WOLFSSL_ASN1_OBJECT::d’ has no member named ‘dNSName’
       ASN1_IA5STRING* domain = gen->d.dNSName;
                                       ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:67:27: error: ‘V_ASN1_IA5STRING’ was not declared in this scope
       if (domain->type == V_ASN1_IA5STRING && domain->data && domain->length)
                           ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:73:34: error: ‘GENERAL_NAMES_free’ was not declared in this scope
           GENERAL_NAMES_free(gens);
                                  ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:78:27: error: ‘GEN_IPADD’ was not declared in this scope
     else if (gen->type == GEN_IPADD && is_address)
                           ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:80:7: error: ‘ASN1_OCTET_STRING’ was not declared in this scope
       ASN1_OCTET_STRING* ip_address = gen->d.iPAddress;
       ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:80:26: error: ‘ip_address’ was not declared in this scope
       ASN1_OCTET_STRING* ip_address = gen->d.iPAddress;
                          ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:80:46: error: ‘struct WOLFSSL_ASN1_OBJECT::d’ has no member named ‘iPAddress’
       ASN1_OCTET_STRING* ip_address = gen->d.iPAddress;
                                              ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:88:36: error: ‘GENERAL_NAMES_free’ was not declared in this scope
             GENERAL_NAMES_free(gens);
                                    ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:97:36: error: ‘GENERAL_NAMES_free’ was not declared in this scope
             GENERAL_NAMES_free(gens);
                                    ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/impl/rfc2818_verification.ipp:104:26: error: ‘GENERAL_NAMES_free’ was not declared in this scope
   GENERAL_NAMES_free(gens);
                          ^
In file included from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/engine.hpp:161:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/buffered_handshake_op.hpp:21,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/stream.hpp:29,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:24,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp: In constructor ‘asio::ssl::detail::engine::engine(SSL_CTX*)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp:49:3: error: ‘::SSL_set_mode’ has not been declared
   ::SSL_set_mode(ssl_, SSL_MODE_ENABLE_PARTIAL_WRITE);
   ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp:50:3: error: ‘::SSL_set_mode’ has not been declared
   ::SSL_set_mode(ssl_, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
   ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp:56:3: error: ‘::BIO_new_bio_pair’ has not been declared
   ::BIO_new_bio_pair(&int_bio, 0, &ext_bio_, 0);
   ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp: In member function ‘asio::error_code asio::ssl::detail::engine::set_verify_mode(asio::ssl::verify_mode, asio::error_code&)’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp:80:29: error: ‘::SSL_get_verify_callback’ has not been declared
   ::SSL_set_verify(ssl_, v, ::SSL_get_verify_callback(ssl_));
                             ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp: In member function ‘const error_code& asio::ssl::detail::engine::map_error_code(asio::error_code&) const’:
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp:203:28: error: ‘BIO_wpending’ was not declared in this scope
   if (BIO_wpending(ext_bio_))
                            ^
/home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/impl/engine.ipp:212:11: error: invalid use of incomplete type ‘SSL {aka struct WOLFSSL}’
   if (ssl_->version == SSL2_VERSION)
           ^
In file included from /home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/openssl/ssl.h:35:0,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/detail/openssl_types.hpp:20,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context_base.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl/context.hpp:27,
                 from /home/default/GIT/websocketpp_wolfssl/asio/asio-1.10.8/include/asio/ssl.hpp:19,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/common/asio_ssl.hpp:34,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:35,
                 from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/wolfssl_github/installed/include/wolfssl/ssl.h:107:16: note: forward declaration of ‘SSL {aka struct WOLFSSL}’
 typedef struct WOLFSSL          WOLFSSL;
                ^
In file included from /home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/config/asio_client.hpp:33:0,
                 from ../debug_client.cpp:36:
/home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp: In member function ‘std::error_code websocketpp::transport::asio::tls_socket::connection::translate_ec(ErrorCodeType)’:
/home/default/GIT/websocketpp_wolfssl/websocketpp/websocketpp/transport/asio/security/tls.hpp:358:47: error: ‘SSL_R_SHORT_READ’ was not declared in this scope
             if (ERR_GET_REASON(ec.value()) == SSL_R_SHORT_READ) {
                                               ^