Compile simple hello world ZeroMQ C example, compile flags?

Question

Trying to compile the example hello_world.c from the zeromq tutorial: http://zguide.zeromq.org/page:all#Ask-and-Ye-Shall-Receive Pretty sure I have everything installed in O

Answer 1

You list the ZeroMQ libraries in your question, but you do not actually link with them. Change the command line to this:

clang -Wall hwserver.c -o hwserver -L/usr/local/lib -lzmq

Explanation of the extra arguments:

• -L/usr/local/lib tells the linker to add a path (/usr/local/lib) to the library search path.
• -lzmq tells the library to link with the zmq library.

The $PATH environment variable have nothing to do with this, it just tells the shell where to look for commands.