编译简单的hello world ZeroMQ C例子，编译标志？
尝试从zeromq教程编译示例hello_world.c：http：//zguide.zeromq.org/page：all #Ask-and-Ye-Shall-Receive很确定我已经在OSX Mountain Lion中安装了所有内容。
clang -Wall hwserver.c -o hwserver 给我一个错误：
Undefined symbols for architecture x86_64: "_zmq_bind", referenced from: _main in hwserver-OgrEe6.o "_zmq_ctx_new", referenced from: _main in hwserver-OgrEe6.o "_zmq_msg_close", referenced from: _main in hwserver-OgrEe6.o "_zmq_msg_data", referenced from: _main in hwserver-OgrEe6.o "_zmq_msg_init", referenced from: _main in hwserver-OgrEe6.o "_zmq_msg_init_size", referenced from: _main in hwserver-OgrEe6.o "_zmq_msg_recv", referenced from: _main in hwserver-OgrEe6.o "_zmq_msg_send", referenced from: _main in hwserver-OgrEe6.o "_zmq_socket", referenced from: _main in hwserver-OgrEe6.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)
我不是C中最有经验的人。不确定我是否确定要为zmq dylib或标题添加编译器标志或者我的$ PATH关闭。
在/ usr / local / lib中：
libzmq.3.dylib libzmq.a libzmq.dylib libzmq.la
在/ usr / local / include中：
zmq.h zmq_utils.h
和echo $ PATH：
/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/lib/:/usr/local/include/
您在问题中列出了ZeroMQ库，但实际上并未与它们链接 。 将命令行更改为：
clang -Wall hwserver.c -o hwserver -L/usr/local/lib -lzmq
额外参数的解释：
-
-L/usr/local/lib告诉链接器将路径（/usr/local/lib）添加到库搜索路径。 -
-lzmq告诉库链接zmq库。
$PATH环境变量与此无关，它只是告诉shell在哪里查找命令。