Boost Asio和OpenSSL 1.1.0 [英] Boost Asio and OpenSSL 1.1.0

查看：3186 发布时间：2016/12/2 23:43:39 c++ osx boost cmake openssl

本文介绍了Boost Asio和OpenSSL 1.1.0的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我目前正在使用一个C ++ IMAP库，以便我可以改进一些肯定生锈的C ++技能。我想让库尽可能便携，这样我可以在操作系统上使用它，如果我感到疯了，甚至在移动设备上。为此，我做了一些研究，并决定使用Boost的Asio库。

我可以让Boost在我的项目中构建和运行。 I event向google.com发送了一个简单的HTTP GET。不幸的是，我需要能够使用TLS进行通信，并且我遇到了尝试使用Asio的SSL功能的问题。

我使用默认设置从源代码构建了Boost和OpenSSL（因此一切都在/ usr / local中）。我也使用CMAKE来构建我的项目。以下是我的CMAKE文件：

  cmake_minimum_required（VERSION 3.2）
项目（IMAP）
 $ b b set（CMAKE_CXX_FLAGS$ {CMAKE_CXX_FLAGS} -std = c ++ 11）
 
消息（警告启动CMAKE ...）
设置（SOURCE_FILES main.cpp）
 add_executable（IMAP $ {SOURCE_FILES}）
 
 find_package（Boost COMPONENTS system thread regex REQUIRED）
消息（警告Boost_INCLUDE_DIR：$ {Boost_INCLUDE_DIR}）
消息Boost_LIBRARIES：$ {Boost_LIBRARIES}）
消息（警告Boost_VERSION：$ {Boost_VERSION}）
 include_directories（$ {Boost_INCLUDE_DIR}）
 target_link_libraries（IMAP $ {Boost_LIBRARIES}）
 
 find_package（OpenSSL REQUIRED）
消息（警告OpenSSL_VERSION：$ {OPENSSL_VERSION}）
消息（警告OpenSSL_INCLUDE_DIR：$ {OPENSSL_INCLUDE_DIR}）
消息OpenSSL_LIBRARIES：$ {OPENSSL_LIBRARIES}）
 include_directories（$ {OPENSSL_INCLUDE_DIR}）
 target_link_libraries（IMAP $ {OPENSSL_LIBRARIES}）
   
 这是我的CMAKE消息的输出：
 警告：启动CMAKE。 .. 
警告：Boost_INCLUDE_DIR：/ usr / local / include 
警告：Boost_LIBRARIES：/usr/local/lib/libboost_system.dylib;/usr/local/lib/libboost_thread.dylib;/usr/local /lib/libboost_regex.dylib;/usr/local/lib/libboost_chrono.dylib;/usr/local/lib/libboost_date_time.dylib;/usr/local/lib/libboost_atomic.dylib 
警告：Boost_VERSION：106100 
警告：OpenSSL_VERSION：1.1.0 
警告：OpenSSL_INCLUDE_DIR：/ usr / local / include 
警告：OpenSSL_LIBRARIES：/usr/local/lib/libssl.dylib;/usr/local/lib/libcrypto .dylib 
  
当我尝试构建项目时，我收到以下几堆错误：
 在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在包含的文件中从/path/to/my/code/JMail/IMAP/IMAPClient.h:6：
在包含在/path/to/my/code/JMail/IMAP/TLSSocket.h:9的文件中：
在/usr/local/include/boost/asio/ssl.hpp:19中包含的文件中：
在包含在/usr/local/include/boost/asio/ssl/context.hpp:29中的文件中：
在/usr/local/include/boost/asio/ssl/detail/openssl_init.hpp:100中包含的文件中：
 / usr / local / include / boost / asio / ssl / detail / impl / openssl_init .ipp：43：23：error：expected unqualified-id 
 mutexes_.resize（:: CRYPTO_num_locks（））; 
 ^ 
 /usr/local/include/openssl/crypto.h:218:41：注意：从宏CRYPTO_num_locks扩展
＃define CRYPTO_num_locks（）（0）
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在包含在/ path /到/ my / code / JMail / IMAP / IMAPClient的文件中.h：6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include / boost / asio中的文件中/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:29中包含的文件中：
在包含在/ usr / local / include / boost中的文件中/asio/ssl/detail/openssl_init.hpp:100：
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:46:66：error：expected unqualified-id 
 :: CRYPTO_set_locking_callback（& do_init :: openssl_locking_func）; 
 ^ 
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:47:56：error：expected unqualified-id 
 :: CRYPTO_set_id_callback（& do_init :: openssl_id_func）; 
 ^ 
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:64:32：error：expected unqualified-id 
 :: CRYPTO_set_id_callback（0） ; 
 ^ 
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:65:37：错误：expected unqualified-id 
 :: CRYPTO_set_locking_callback（0） ; 
 ^ 
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:66:7：error：expected unqualified-id 
 :: ERR_free_strings（）; 
 ^ 
 /usr/local/include/openssl/err.h:241:29：注意：从宏'ERR_free_strings'扩展
＃define ERR_free_strings（）while（0）继续
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在从/ path /到/ my / code / JMail / IMAP /IMAPClient.h:6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include / boost中的文件中/asio/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:29中包含的文件中：
在包含在/ usr / local / include中的文件中/boost/asio/ssl/detail/openssl_init.hpp:100：
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:68:7：warning：'ERR_remove_thread_state'is deprecated [-Wdeprecated-declarations] 
 :: ERR_remove_thread_state（NULL）; 
 ^ 
 /usr/local/include/openssl/err.h:244:25：注意：'ERR_remove_thread_state'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（void ERR_remove_thread_state（void *）） 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在从/ path /到/ my / code / JMail中包含的文件中/IMAP/IMAPClient.h:6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include中的文件中/boost/asio/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:29中包含的文件中：
在包含在/ usr / local中的文件中/include/boost/asio/ssl/detail/openssl_init.hpp:100：
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:72:7：error：expected unqualified -id 
 :: EVP_cleanup（）; 
 ^ 
 /usr/local/include/openssl/evp.h:865:25：注意：从宏'EVP_cleanup'扩展
＃define EVP_cleanup（）while（0）continue 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在从/ path /到/ my / code / JMail / IMAP /IMAPClient.h:6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include / boost中的文件中/asio/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:29中包含的文件中：
在包含在/ usr / local / include中的文件中/boost/asio/ssl/detail/openssl_init.hpp:100：
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:73:7：error：expected unqualified-id 
 :: CRYPTO_cleanup_all_ex_data（）; 
 ^ 
 /usr/local/include/openssl/crypto.h:206:39：注意：从宏'CRYPTO_cleanup_all_ex_data'扩展
＃define CRYPTO_cleanup_all_ex_data（）while（0）continue 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在从/ path /到/ my / code / JMail / IMAP /IMAPClient.h:6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include / boost中的文件中/asio/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:29中包含的文件中：
在包含在/ usr / local / include中的文件中/boost/asio/ssl/detail/openssl_init.hpp:100：
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:76:7：error：expected unqualified-id 
 :: ENGINE_cleanup（）; 
 ^ 
 /usr/local/include/openssl/engine.h:508:27：注意：从宏'ENGINE_cleanup'扩展
＃define ENGINE_cleanup（）while（0）继续
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在从/ path /到/ my / code / JMail / IMAP /IMAPClient.h:6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include / boost中的文件中/asio/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:29中包含的文件中：
在包含在/ usr / local / include中的文件中/boost/asio/ssl/detail/openssl_init.hpp:100：
 /usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:106:16：错误：使用未声明的标识符'CRYPTO_LOCK'
 if（mode& CRYPTO_LOCK）
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在/path/to/my/code/JMail/IMAP/IMAPClient.h:6中包含的文件中：
在包含在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中的文件中： 
在/usr/local/include/boost/asio/ssl.hpp:19中包含的文件中：
在包含在/usr/local/include/boost/asio/ssl/context.hpp中的文件中： 786：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:83:31：错误：在全局命名空间中没有名为SSLv2_method的成员
 handle_ = :: SSL_CTX_new （:: SSLv2_method（））; 
 ~~ ^ 
 /usr/local/include/boost/asio/ssl/impl/context.ipp:86:31：错误：在全局命名空间中没有名为SSLv2_client_method的成员
 handle_ = :: SSL_CTX_new（:: SSLv2_client_method（））; 
 ~~ ^ 
 /usr/local/include/boost/asio/ssl/impl/context.ipp:89:31：错误：在全局命名空间中没有名为SSLv2_server_method的成员
 handle_ = :: SSL_CTX_new（:: SSLv2_server_method（））; 
 ~~ ^ 
 /usr/local/include/boost/asio/ssl/impl/context.ipp:111:31：warning：'TLSv1_method'已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_method（））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1556:45：注意：'TLSv1_method'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_method ））/ * TLSv1.0 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包含自/usr/local/include/boost/asio/ssl.hpp:19：
在从/usr/local/include/boost/asio/ssl/context.hpp:786包含的文件中：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:114:31：warning：'TLSv1_client_method'已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_client_method （））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1558:45：注意：TLSv1_client_method已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_client_method ））/ * TLSv1.0 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包括在/usr/local/include/boost/asio/ssl.hpp:19中：
包含在/usr/local/include/boost/asio/ssl/context.hpp:786中的文件：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:117:31：warning：'TLSv1_server_method'已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_server_method （））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1557:45：注意：'TLSv1_server_method'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_server_method ））/ * TLSv1.0 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包括在/usr/local/include/boost/asio/ssl.hpp:19中：
包含在/usr/local/include/boost/asio/ssl/context.hpp:786中的文件：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:130:31：warning：'TLSv1_1_method'已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_1_method （））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1562:45：注意：'TLSv1_1_method'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_1_method ））/ * TLSv1.1 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包括在/usr/local/include/boost/asio/ssl.hpp:19中：
包含在/usr/local/include/boost/asio/ssl/context.hpp:786中的文件：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:133:31：warning：'TLSv1_1_client_method'已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_1_client_method （））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1564:45：注意：'TLSv1_1_client_method'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_1_client_method ））/ * TLSv1.1 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包含自/usr/local/include/boost/asio/ssl.hpp:19：
在从/usr/local/include/boost/asio/ssl/context.hpp:786包含的文件中：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:136:31：警告：TLSv1_1_server_method已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_1_server_method （））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1563:45：注意：'TLSv1_1_server_method'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_1_server_method（void ）/ * TLSv1.1 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包含自/usr/local/include/boost/asio/ssl.hpp:19：
在从/usr/local/include/boost/asio/ssl/context.hpp:786包含的文件中：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:148:31：警告：TLSv1_2_method已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_2_method （））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1568:45：注意：'TLSv1_2_method'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_2_method ））/ * TLSv1.2 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包括在/usr/local/include/boost/asio/ssl.hpp:19中：
包含在/usr/local/include/boost/asio/ssl/context.hpp:786中的文件：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:151:31：警告：TLSv1_2_client_method已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_2_client_method （））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1570:45：注意：'TLSv1_2_client_method'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_2_client_method ））/ * TLSv1.2 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包括在/usr/local/include/boost/asio/ssl.hpp:19中：
包含在/usr/local/include/boost/asio/ssl/context.hpp:786中的文件：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:154:31：警告：TLSv1_2_server_method已弃用[-Wdeprecated-declarations] 
 handle_ = :: SSL_CTX_new（:: TLSv1_2_server_method （））; 
 ^ 
 /usr/local/include/openssl/ssl.h:1569:45：注意：'TLSv1_2_server_method'已在此处显式标记为已弃用
 DEPRECATEDIN_1_1_0（__ owur const SSL_METHOD * TLSv1_2_server_method（void ））/ * TLSv1.2 * / 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在包含/路径/到/ my / code / JMail / IMAP / IMAPClient.h：6：
在从/path/to/my/code/JMail/IMAP/TLSSocket.h:9包含的文件中：
文件包括在/usr/local/include/boost/asio/ssl.hpp:19中：
包含在/usr/local/include/boost/asio/ssl/context.hpp:786中的文件：
 /usr/local/include/boost/asio/ssl/impl/context.ipp:208:16：错误：成员访问不完全类型'SSL_CTX'（aka'ssl_ctx_st'）
 if（handle _-> default_passwd_callback_userdata）
 ^ 
 /usr/local/include/openssl/ossl_typ.h:144:16：注意：'ssl_ctx_st'的前向声明
 typedef struct ssl_ctx_st SSL_CTX; 
 ^ 
从/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在/ path /到/ my / code / JMail中包含的文件/IMAP/IMAPClient.h:6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include中的文件中/boost/asio/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:786中包含的文件中：
 / usr / local / include / boost /asio/ssl/impl/context.ipp:212:20：error：成员访问不完全类型'SSL_CTX'（aka'ssl_ctx_st'）
句柄_-> default_passwd_callback_userdata）; 
 ^ 
 /usr/local/include/openssl/ossl_typ.h:144:16：note：正向声明'ssl_ctx_st'
 typedef struct ssl_ctx_st SSL_CTX; 
 ^ 
从/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在/ path /到/ my / code / JMail中包含的文件/IMAP/IMAPClient.h:6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include中的文件中/boost/asio/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:786中包含的文件中：
 / usr / local / include / boost /asio/ssl/impl/context.ipp:212:22：error：expected'）'
 handle _-> default_passwd_callback_userdata）; 
 ^ 
 /usr/local/include/boost/asio/ssl/impl/context.ipp:211:53：注意：匹配这个'（'
 static_cast< detail :: password_callback_base *>（
 ^ 
 /usr/local/include/boost/asio/ssl/impl/context.ipp:214:14：error：成员访问不完全类型'SSL_CTX'（aka'ssl_ctx_st '）
 handle _-> default_passwd_callback_userdata = 0; 
 ^ 
 /usr/local/include/openssl/ossl_typ.h:144:16：note：正向声明为'ssl_ctx_st'
 typedef struct ssl_ctx_st SSL_CTX; 
 ^ 
在/path/to/my/code/JMail/IMAP/main.cpp:4中包含的文件中：
在包含在/ path /到/ my / code / JMail / IMAP / IMAPClient.h：6：
在包含在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中的文件中：
在包括的文件中从/usr/local/include/boost/asio/ssl.hpp:19：
在包含在/usr/local/include/boost/asio/ssl/context.hpp:786的文件中：
 / usr / local / include / boost / asio / ssl / impl / context.ipp：551：18：error：成员访问不完全类型'SSL_CTX'（aka'ssl_ctx_st'）
 handle _-> default_passwd_callback，
 ^ 
 /usr/local/include/openssl/ossl_typ.h:144:16：note：前缀声明'ssl_ctx_st'
 typedef struct ssl_ctx_st SSL_CTX; 
 ^ 
从/path/to/my/code/JMail/IMAP/main.cpp:4：
中包含的文件在/ path /到/ my / code / JMail中包含的文件/IMAP/IMAPClient.h:6：
在/path/to/my/code/JMail/IMAP/TLSSocket.h:9中包含的文件中：
在包含在/ usr / local / include中的文件中/boost/asio/ssl.hpp:19：
在/usr/local/include/boost/asio/ssl/context.hpp:786中包含的文件中：
 / usr / local / include / boost /asio/ssl/impl/context.ipp:552:18：error：成员访问不完全类型'SSL_CTX'（aka'ssl_ctx_st'）
句柄_-> default_passwd_callback_userdata}}; 
 ^ 
 /usr/local/include/openssl/ossl_typ.h:144:16：note：正向声明'ssl_ctx_st'
 typedef struct ssl_ctx_st SSL_CTX; 
 ^ 
致命错误：发出的错误太多，现在停止[-ferror-limit =] 
生成了10个警告和20个错误。 
 
引用的TLSSocket类基本上只是Boost Asio SSL示例的一个包装：
  #include< boost / bind.hpp> 
 #include< boost / asio.hpp> 
 #include< boost / asio / ssl.hpp> 
 
 void TLSSocket :: connect（）{
 boost :: asio :: io_service io_service; 
 boost :: asio :: ip :: tcp :: resolver解析器（io_service）; 
 boost :: asio :: ip :: tcp :: resolver :: query query（this-> address，this-> port）; 
 boost :: asio :: ip :: tcp :: resolver :: iterator iterator = resolver.resolve（query）; 
 boost :: asio :: ssl :: context ctx（boost :: asio :: ssl :: context :: tlsv1）; 
 mSocket = new boost :: asio :: ssl :: stream< boost :: asio :: ip :: tcp :: socket>（io_service，ctx）; 
 mSocket-> set_verify_mode（boost :: asio :: ssl :: verify_peer）; 
 mSocket-> set_verify_callback（boost :: bind（& TLSSocket :: on_verify_certificate，this，_1，_2））; 
 boost :: asio :: async_connect（mSocket-> lowest_layer（），iterator，
 boost :: bind（& TLSSocket :: on_connect，this，boost :: asio :: placeholders :: error ））; 
 io_service.run（）; 
} 
 
 void TLSSocket :: disconnect（）{
 mSocket-> lowest_layer（）。cancel（）; 
} 
 
 TLSSocket :: TLSSocket（std :: string address，std :: string port）{
 this-> address = address; 
 this-> port = port; 
 mSocket = nullptr; 
} 
 
 void * TLSSocket :: send（IMAPRequest * request）{
 boost :: asio :: streambuf requestBuff; 
 std :: ostream request_stream（& requestBuff）; 
 request_stream<< request-> getTag（）<< < request-> getCommand（）<< < request-> getContent（）<< \r\\\
; 
 
 boost :: asio :: write（* mSocket，requestBuff）; 
 
 for（;;）{
 boost :: array< char，128>缓冲; 
 boost :: system :: error_code error; 
 size_t len = mSocket-> read_some（boost :: asio :: buffer（buffer），error）; 
 
 if（error == boost :: asio :: error :: eof）
 break; 
 else if（error）
 throw boost :: system :: system_error（error）; 
 
 std :: cout.write（buffer.data（），len）; 
} 
} 
 
 void TLSSocket :: on_connect（const boost :: system :: error_code& error）{
 if（！error）{
尝试{
 mSocket-> async_handshake（boost :: asio :: ssl :: stream_base :: handshake_type :: client，
 boost :: bind（& TLSSocket :: on_handshake，this，boost :: asio :: placeholder :: error））; 
} catch（std :: exception ex）{
 std :: cout< 握手错误：< ex.what（）<< \\\
; 
} 
} else {
 std :: cout<< 连接错误：< error.message（）<< \\\
; 
} 
} 
 
 void TLSSocket :: on_handshake（const boost :: system :: error_code& error）{
 if（！error）{
 
} else {
 std :: cout<< 握手错误：< error.message（）<< \\\
; 
} 
} 
 
 bool TLSSocket :: on_verify_certificate（bool verified，boost :: asio :: ssl :: verify_context& ctx）{
 char subject_name [256 ]; 
 X509 * cert = X509_STORE_CTX_get_current_cert（ctx.native_handle（））; 
 X509_NAME_oneline（X509_get_subject_name（cert），subject_name，256）; 
 std :: cout<< 验证< subject_name<< \\\
; 
 
 return verified; 
} 
  
 
 
看起来对我来说，甚至连连接阶段编译，它只是试图使我的main.cpp的.o文件。如果我在我的IDE中打开它抱怨的文件之一，IDE会给我一个语法错误突出显示，但我很遗憾为什么。
 
 
 把包含在错误的顺序？我的CMAKE文件有问题吗？我是否错误地构建了OpenSSL或Boost？
 
 
 任何帮助都将不胜感激。我已经工作了这个开关了几个星期，并且花了大部分时间只是让它构建（C ++第1课，我猜：））。
解决方案
这看起来像我一样Boost没有更新使用OpenSSL 1.1.0。在OpenSSL 1.0.2和1.1.0之间已经有一些API更改，它们不是完全源兼容的。我建议你使用1.0.2，直到Boost已更新为使用新的OpenSSL版本（仍然是测试版）。
 
I am currently working on a C++ IMAP library so that I can improve on some admittedly rusty C++ skills. I would like to make the library as portable as possible so that I can use it across OS's and, if I'm feeling crazy, maybe even on a mobile device.  To that end, I've done some research and decided to use Boost's Asio library.

I was able to get Boost to build and run in my project by itself. I event made a simple HTTP GET to google.com. Unfortunately, I need to be able to communicate using TLS and I've run into issues trying to use Asio's SSL functionality. 

I built both Boost and OpenSSL from source, using default settings (so everything is in /usr/local).  I am also using CMAKE to build my project.  Below is my CMAKE file:
cmake_minimum_required(VERSION 3.2)
project(IMAP)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

message(WARNING "Starting CMAKE...")
set(SOURCE_FILES main.cpp)
add_executable(IMAP ${SOURCE_FILES})

find_package(Boost COMPONENTS system thread regex REQUIRED)
message(WARNING "Boost_INCLUDE_DIR: ${Boost_INCLUDE_DIR}")
message(WARNING "Boost_LIBRARIES: ${Boost_LIBRARIES}")
message(WARNING "Boost_VERSION: ${Boost_VERSION}")
include_directories(${Boost_INCLUDE_DIR})
target_link_libraries(IMAP ${Boost_LIBRARIES})

find_package(OpenSSL REQUIRED)
message(WARNING "OpenSSL_VERSION: ${OPENSSL_VERSION}")
message(WARNING "OpenSSL_INCLUDE_DIR: ${OPENSSL_INCLUDE_DIR}")
message(WARNING "OpenSSL_LIBRARIES: ${OPENSSL_LIBRARIES}")
include_directories(${OPENSSL_INCLUDE_DIR})
target_link_libraries(IMAP ${OPENSSL_LIBRARIES})
And this is the output of my CMAKE messages:
Warning:Starting CMAKE...
Warning:Boost_INCLUDE_DIR: /usr/local/include
Warning:Boost_LIBRARIES: /usr/local/lib/libboost_system.dylib;/usr/local/lib/libboost_thread.dylib;/usr/local/lib/libboost_regex.dylib;/usr/local/lib/libboost_chrono.dylib;/usr/local/lib/libboost_date_time.dylib;/usr/local/lib/libboost_atomic.dylib
Warning:Boost_VERSION: 106100
Warning:OpenSSL_VERSION: 1.1.0
Warning:OpenSSL_INCLUDE_DIR: /usr/local/include
Warning:OpenSSL_LIBRARIES: /usr/local/lib/libssl.dylib;/usr/local/lib/libcrypto.dylib
When I try to build the project I receive the following pile of errors:
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:29:
In file included from /usr/local/include/boost/asio/ssl/detail/openssl_init.hpp:100:
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:43:23: error: expected unqualified-id
    mutexes_.resize(::CRYPTO_num_locks());
                      ^
/usr/local/include/openssl/crypto.h:218:41: note: expanded from macro 'CRYPTO_num_locks'
#  define CRYPTO_num_locks()            (0)
                                        ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:29:
In file included from /usr/local/include/boost/asio/ssl/detail/openssl_init.hpp:100:
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:46:66: error: expected unqualified-id
    ::CRYPTO_set_locking_callback(&do_init::openssl_locking_func);
                                                                 ^
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:47:56: error: expected unqualified-id
    ::CRYPTO_set_id_callback(&do_init::openssl_id_func);
                                                       ^
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:64:32: error: expected unqualified-id
    ::CRYPTO_set_id_callback(0);
                               ^
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:65:37: error: expected unqualified-id
    ::CRYPTO_set_locking_callback(0);
                                    ^
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:66:7: error: expected unqualified-id
    ::ERR_free_strings();
      ^
/usr/local/include/openssl/err.h:241:29: note: expanded from macro 'ERR_free_strings'
# define ERR_free_strings() while(0) continue
                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:29:
In file included from /usr/local/include/boost/asio/ssl/detail/openssl_init.hpp:100:
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:68:7: warning: 'ERR_remove_thread_state' is deprecated [-Wdeprecated-declarations]
    ::ERR_remove_thread_state(NULL);
      ^
/usr/local/include/openssl/err.h:244:25: note: 'ERR_remove_thread_state' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(void ERR_remove_thread_state(void *))
                        ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:29:
In file included from /usr/local/include/boost/asio/ssl/detail/openssl_init.hpp:100:
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:72:7: error: expected unqualified-id
    ::EVP_cleanup();
      ^
/usr/local/include/openssl/evp.h:865:25: note: expanded from macro 'EVP_cleanup'
#  define EVP_cleanup() while(0) continue
                        ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:29:
In file included from /usr/local/include/boost/asio/ssl/detail/openssl_init.hpp:100:
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:73:7: error: expected unqualified-id
    ::CRYPTO_cleanup_all_ex_data();
      ^
/usr/local/include/openssl/crypto.h:206:39: note: expanded from macro 'CRYPTO_cleanup_all_ex_data'
# define CRYPTO_cleanup_all_ex_data() while(0) continue
                                      ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:29:
In file included from /usr/local/include/boost/asio/ssl/detail/openssl_init.hpp:100:
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:76:7: error: expected unqualified-id
    ::ENGINE_cleanup();
      ^
/usr/local/include/openssl/engine.h:508:27: note: expanded from macro 'ENGINE_cleanup'
# define ENGINE_cleanup() while(0) continue
                          ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:29:
In file included from /usr/local/include/boost/asio/ssl/detail/openssl_init.hpp:100:
/usr/local/include/boost/asio/ssl/detail/impl/openssl_init.ipp:106:16: error: use of undeclared identifier 'CRYPTO_LOCK'
    if (mode & CRYPTO_LOCK)
               ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:83:31: error: no member named 'SSLv2_method' in the global namespace
    handle_ = ::SSL_CTX_new(::SSLv2_method());
                            ~~^
/usr/local/include/boost/asio/ssl/impl/context.ipp:86:31: error: no member named 'SSLv2_client_method' in the global namespace
    handle_ = ::SSL_CTX_new(::SSLv2_client_method());
                            ~~^
/usr/local/include/boost/asio/ssl/impl/context.ipp:89:31: error: no member named 'SSLv2_server_method' in the global namespace
    handle_ = ::SSL_CTX_new(::SSLv2_server_method());
                            ~~^
/usr/local/include/boost/asio/ssl/impl/context.ipp:111:31: warning: 'TLSv1_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_method());
                              ^
/usr/local/include/openssl/ssl.h:1556:45: note: 'TLSv1_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_method(void)) /* TLSv1.0 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:114:31: warning: 'TLSv1_client_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_client_method());
                              ^
/usr/local/include/openssl/ssl.h:1558:45: note: 'TLSv1_client_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_client_method(void)) /* TLSv1.0 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:117:31: warning: 'TLSv1_server_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_server_method());
                              ^
/usr/local/include/openssl/ssl.h:1557:45: note: 'TLSv1_server_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_server_method(void)) /* TLSv1.0 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:130:31: warning: 'TLSv1_1_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_1_method());
                              ^
/usr/local/include/openssl/ssl.h:1562:45: note: 'TLSv1_1_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_method(void)) /* TLSv1.1 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:133:31: warning: 'TLSv1_1_client_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_1_client_method());
                              ^
/usr/local/include/openssl/ssl.h:1564:45: note: 'TLSv1_1_client_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_client_method(void)) /* TLSv1.1 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:136:31: warning: 'TLSv1_1_server_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_1_server_method());
                              ^
/usr/local/include/openssl/ssl.h:1563:45: note: 'TLSv1_1_server_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_server_method(void)) /* TLSv1.1 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:148:31: warning: 'TLSv1_2_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_2_method());
                              ^
/usr/local/include/openssl/ssl.h:1568:45: note: 'TLSv1_2_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_method(void)) /* TLSv1.2 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:151:31: warning: 'TLSv1_2_client_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_2_client_method());
                              ^
/usr/local/include/openssl/ssl.h:1570:45: note: 'TLSv1_2_client_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_client_method(void)) /* TLSv1.2 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:154:31: warning: 'TLSv1_2_server_method' is deprecated [-Wdeprecated-declarations]
    handle_ = ::SSL_CTX_new(::TLSv1_2_server_method());
                              ^
/usr/local/include/openssl/ssl.h:1569:45: note: 'TLSv1_2_server_method' has been explicitly marked deprecated here
DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_server_method(void)) /* TLSv1.2 */
                                            ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:208:16: error: member access into incomplete type 'SSL_CTX' (aka 'ssl_ctx_st')
    if (handle_->default_passwd_callback_userdata)
               ^
/usr/local/include/openssl/ossl_typ.h:144:16: note: forward declaration of 'ssl_ctx_st'
typedef struct ssl_ctx_st SSL_CTX;
               ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:212:20: error: member access into incomplete type 'SSL_CTX' (aka 'ssl_ctx_st')
            handle_->default_passwd_callback_userdata);
                   ^
/usr/local/include/openssl/ossl_typ.h:144:16: note: forward declaration of 'ssl_ctx_st'
typedef struct ssl_ctx_st SSL_CTX;
               ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:212:22: error: expected ')'
            handle_->default_passwd_callback_userdata);
                     ^
/usr/local/include/boost/asio/ssl/impl/context.ipp:211:53: note: to match this '('
        static_cast<detail::password_callback_base*>(
                                                    ^
/usr/local/include/boost/asio/ssl/impl/context.ipp:214:14: error: member access into incomplete type 'SSL_CTX' (aka 'ssl_ctx_st')
      handle_->default_passwd_callback_userdata = 0;
             ^
/usr/local/include/openssl/ossl_typ.h:144:16: note: forward declaration of 'ssl_ctx_st'
typedef struct ssl_ctx_st SSL_CTX;
               ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:551:18: error: member access into incomplete type 'SSL_CTX' (aka 'ssl_ctx_st')
          handle_->default_passwd_callback,
                 ^
/usr/local/include/openssl/ossl_typ.h:144:16: note: forward declaration of 'ssl_ctx_st'
typedef struct ssl_ctx_st SSL_CTX;
               ^
In file included from /path/to/my/code/JMail/IMAP/main.cpp:4:
In file included from /path/to/my/code/JMail/IMAP/IMAPClient.h:6:
In file included from /path/to/my/code/JMail/IMAP/TLSSocket.h:9:
In file included from /usr/local/include/boost/asio/ssl.hpp:19:
In file included from /usr/local/include/boost/asio/ssl/context.hpp:786:
/usr/local/include/boost/asio/ssl/impl/context.ipp:552:18: error: member access into incomplete type 'SSL_CTX' (aka 'ssl_ctx_st')
          handle_->default_passwd_callback_userdata) };
                 ^
/usr/local/include/openssl/ossl_typ.h:144:16: note: forward declaration of 'ssl_ctx_st'
typedef struct ssl_ctx_st SSL_CTX;
               ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
10 warnings and 20 errors generated. 
The TLSSocket class that is being referenced is basically just a wrapper around the Boost Asio SSL example:
#include <boost/bind.hpp>
#include <boost/asio.hpp>
#include <boost/asio/ssl.hpp>

void TLSSocket::connect() {
    boost::asio::io_service io_service;
    boost::asio::ip::tcp::resolver resolver(io_service);
    boost::asio::ip::tcp::resolver::query query(this->address, this->port);
    boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve(query);
    boost::asio::ssl::context ctx(boost::asio::ssl::context::tlsv1);
    mSocket = new boost::asio::ssl::stream<boost::asio::ip::tcp::socket>(io_service, ctx);
    mSocket->set_verify_mode(boost::asio::ssl::verify_peer);
    mSocket->set_verify_callback(boost::bind(&TLSSocket::on_verify_certificate, this, _1, _2));
    boost::asio::async_connect(mSocket->lowest_layer(), iterator,
        boost::bind(&TLSSocket::on_connect, this, boost::asio::placeholders::error));
    io_service.run();
}

void TLSSocket::disconnect() {
    mSocket->lowest_layer().cancel();
}

TLSSocket::TLSSocket(std::string address, std::string port) {
    this->address = address;
    this->port = port;
    mSocket = nullptr;
}

void *TLSSocket::send(IMAPRequest *request) {
    boost::asio::streambuf requestBuff;
    std::ostream request_stream(&requestBuff);
    request_stream << request->getTag() << " " << request->getCommand() << " " << request->getContent() << "\r\n";

    boost::asio::write(*mSocket, requestBuff);

    for (; ;) {
        boost::array<char, 128> buffer;
        boost::system::error_code error;
        size_t len = mSocket->read_some(boost::asio::buffer(buffer), error);

        if (error == boost::asio::error::eof)
            break;
        else if (error)
            throw boost::system::system_error(error);

        std::cout.write(buffer.data(), len);
    }
}

void TLSSocket::on_connect(const boost::system::error_code& error){
    if(!error) {
        try {
            mSocket->async_handshake(boost::asio::ssl::stream_base::handshake_type ::client,
                                     boost::bind(&TLSSocket::on_handshake, this, boost::asio::placeholders::error));
        } catch (std::exception ex){
            std::cout << "Handshaking error: " << ex.what() << "\n";
        }
    } else {
        std::cout << "Connect error: " << error.message() << "\n";
    }
}

void TLSSocket::on_handshake(const boost::system::error_code& error){
    if(!error){

    } else {
        std::cout << "Handshaking error: " << error.message() << "\n";
    }
}

bool TLSSocket::on_verify_certificate(bool verified, boost::asio::ssl::verify_context &ctx) {
    char subject_name[256];
    X509* cert = X509_STORE_CTX_get_current_cert(ctx.native_handle());
    X509_NAME_oneline(X509_get_subject_name(cert), subject_name, 256);
    std::cout << "Verifying " << subject_name << "\n";

    return verified;
}
It looks to me like it isn't even getting to the linking stage of compilation, it's just trying to make the .o file for my main.cpp. If I open one of the files that it complains about in my IDE, the IDE gives me a syntax error highlight, but I'm stumped as to why.

Did I put the includes in the wrong order? Is there an issue with my CMAKE file? Did I build OpenSSL or Boost incorrectly?

Any help would be appreciated. I've been working on this on and off for a couple of weeks and have spent the majority of that time just getting it to build (C++ Lesson 1, I guess :)).
 解决方案 
This looks to me like Boost has not been updated to work with OpenSSL 1.1.0. There have been a number of API changes between OpenSSL 1.0.2 and 1.1.0 and they are not fully source compatible. I suggest you use 1.0.2 until Boost has been updated to work with the new OpenSSL version (which is still in beta anyway).

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