cc1: warnings being treated as errors
libs/esl/src/esl.c: In function "esl_recv_event":
libs/esl/src/esl.c:1190: error: array subscript is above array bounds
libs/esl/src/esl.c:1227: error: array subscript is above array bounds
Clamp handle_recv() return value to safe values.
Signed-off-by: Stefan Knoblich <stkn@openisdn.net>