Linux中C++动态库编译的示例分析
这篇文章主要介绍Linux中C++动态库编译的示例分析，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！
1 编译
问题1： configure:error: "Error: libcrypto required."
解决：apt-getinstall libssl-dev
问题2：uint32_tdoes not name a type
解决：
uint32_t定义文件在stdint.h，通过whereis stdint.h
stdint.h: /usr/include/stdint.h
说明在标准的include路径下，将出现编译错误的源码文件中添加#include
问题3：Makefile文件的BOOST库路径指定错误
解决：
MakeFile文件中:BOOST_DIR = /usr/local/include/boost
而实际的情况却是：BOOST_DIR=/usr/include/boost
# apt-get installlibboost-dev
已经安装成功，但是不清楚安装的位置
查找本地boost库的安装目录：
whereis boost
boost:/usr/include/boost
问题 4：ntohs 存在未定义的编译错误
解决：
包含头文件#include
问题5：编译例子出现thrift库函数大量未定义的编译错误
解决：
主要是链接-lthrift必须放在CppClient.cppCppServer.cpp的后面，修改Makefile文件，调整两者的顺序即可。当某一个源码文件编译找不到函数定义的时候，只会往后查找函数定义
问题6：
解决：添加-DHAVE_NETINET_IN_H
In file included from /home/thrift/protocol/TBinaryProtocol.h:280:0,
from UploadMessageService_server.skeleton.cpp:5:
/home/thrift/protocol/TBinaryProtocol.tcc: In member function 'uint32_t apache::thrift::protocol::TBinaryProtocolT
/home/thrift/protocol/TBinaryProtocol.tcc:147:26: warning: there are no arguments to 'htons' that depend on a template parameter, so a declaration of 'hton' must be available [-fpermissive]
int16_t net = (int16_t)htons(i16);
^~~~~
/home/thrift/protocol/TBinaryProtocol.tcc: In member function 'uint32_t apache::thrift::protocol::TBinaryProtocolT
/home/thrift/protocol/TBinaryProtocol.tcc:154:26: warning: there are no arguments to 'htonl' that depend on a template parameter, so a declaration of 'hton' must be available [-fpermissive]
int32_t net = (int32_t)htonl(i32);
^~~~~
/home/thrift/protocol/TBinaryProtocol.tcc: In instantiation of 'uint32_t apache::thrift::protocol::TBinaryProtocolT
/home/thrift/protocol/TVirtualProtocol.h:401:55: required from 'uint32_t apache::thrift::protocol::TVirtualProtocol
UploadMessageService_server.skeleton.cpp:89:1: required from here
/home/thrift/protocol/TBinaryProtocol.tcc:147:31: error: 'htons' was not declared in this scope
int16_t net = (int16_t)htons(i16);
~~~~~^~~~~
/home/thrift/protocol/TBinaryProtocol.tcc:147:31: note: suggested alternative: 'htonll'
int16_t net = (int16_t)htons(i16);
~~~~~^~~~~
htonll
/home/thrift/protocol/TBinaryProtocol.tcc: In instantiation of 'uint32_t apache::thrift::protocol::TBinaryProtocolT
/home/thrift/protocol/TVirtualProtocol.h:405:55: required from 'uint32_t apache::thrift::protocol::TVirtualProtocol
UploadMessageService_server.skeleton.cpp:89:1: required from here
/home/thrift/protocol/TBinaryProtocol.tcc:154:31: error: 'htonl' was not declared in this scope
int32_t net = (int32_t)htonl(i32);
~~~~~^~~~~
/home/thrift/protocol/TBinaryProtocol.tcc:154:31: note: suggested alternative: 'htonll'
int32_t net = (int32_t)htonl(i32);
~~~~~^~~~~
htonll
In file included from /home/thrift/protocol/TBinaryProtocol.h:280:0,
from UploadMessageService_server.skeleton.cpp:5:
/home/thrift/protocol/TBinaryProtocol.tcc: In instantiation of 'uint32_t apache::thrift::protocol::TBinaryProtocolT
/home/thrift/protocol/TVirtualProtocol.h:499:54: required from 'uint32_t apache::thrift::protocol::TVirtualProtocol
UploadMessageService_server.skeleton.cpp:89:1: required from here
/home/thrift/protocol/TBinaryProtocol.tcc:365:23: error: 'ntohs' was not declared in this scope
i16 = (int16_t)ntohs(theBytes.all);
~~~~~^~~~~~~~~~~~~~
/home/thrift/protocol/TBinaryProtocol.tcc:365:23: note: suggested alternative: 'ntohll'
i16 = (int16_t)ntohs(theBytes.all);
~~~~~^~~~~~~~~~~~~~
ntohll
/home/thrift/protocol/TBinaryProtocol.tcc: In instantiation of 'uint32_t apache::thrift::protocol::TBinaryProtocolT
/home/thrift/protocol/TVirtualProtocol.h:503:54: required from 'uint32_t apache::thrift::protocol::TVirtualProtocol
UploadMessageService_server.skeleton.cpp:89:1: required from here
/home/thrift/protocol/TBinaryProtocol.tcc:376:23: error: 'ntohl' was not declared in this scope
i32 = (int32_t)ntohl(theBytes.all);
~~~~~^~~~~~~~~~~~~~
/home/thrift/protocol/TBinaryProtocol.tcc:376:23: note: suggested alternative: 'ntohll'
i32 = (int32_t)ntohl(theBytes.all);
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