Re: [Libevent-users] undefined reference to `bufferevent_get_input'

[Mark Ellzey <mthomas@xxxxxxxxxx>]

On Wed, Aug 31, 2011 at 09:00:17PM +0800, lx wrote:
> hello, i'm a new one , begin to use libevent. i've installed it in ubuntu10.
> 
> by ./configure, make  , sudo make install.
> but when i complie a example, it can't work.* the errors is:*
> 
> ---------------------------------------------------------------------------------------------------------------------------------------------------
> lx@lx-Inspiron-1420:~/c/libevent/demo$ gcc -o test_listener -g -levent
> test_listener.c
> /tmp/ccMQJO33.o: In function `echo_read_cb':
> /home/lx/c/libevent/demo/test_listener.c:16: undefined reference to
> `bufferevent_get_input'
> /home/lx/c/libevent/demo/test_listener.c:17: undefined reference to
> `bufferevent_get_output'
> /tmp/ccMQJO33.o: In function `accept_conn_cb':
> /home/lx/c/libevent/demo/test_listener.c:39: undefined reference to
> `evconnlistener_get_base'
> /home/lx/c/libevent/demo/test_listener.c:40: undefined reference to
> `bufferevent_socket_new'
> /tmp/ccMQJO33.o: In function `accept_error_cb':
> /home/lx/c/libevent/demo/test_listener.c:51: undefined reference to
> `evconnlistener_get_base'
> /tmp/ccMQJO33.o: In function `main':
> /home/lx/c/libevent/demo/test_listener.c:92: undefined reference to
> `evconnlistener_new_bind'
> /home/lx/c/libevent/demo/test_listener.c:99: undefined reference to
> `evconnlistener_set_error_cb'
> collect2: ld returned 1 exit status
> 


You haven't done an install, so the linker is probably using your old
version of libevent (in the ld search path). 
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