Fix redsocks_evbuffer_readline with libevent 2.1 #1
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_EVENT_NUMERIC_VERSION was renamed to EVENT__NUMERIC_VERSION in libevent 2.1. As a result, redsocks_evbuffer_readline would end up using evbuffer_readline(buf), which causes client connections to hang indefinitely. Switch the check to using LIBEVENT_VERSION_NUMBER instead. LIBEVENT_VERSION_NUMBER has been around since libevent 2.0.3 and redsocks is already using it in other parts of the code. Fixes darkk#107, darkk#122.
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_EVENT_NUMERIC_VERSION was renamed to EVENT__NUMERIC_VERSION in libevent 2.1. As a result, redsocks_evbuffer_readline would end up using evbuffer_readline(buf), which causes client connections to hang indefinitely.
Switch the check to using LIBEVENT_VERSION_NUMBER instead. LIBEVENT_VERSION_NUMBER has been around since libevent 2.0.3 and redsocks is already using it in other parts of the code.
Fixes darkk#107, darkk#122.