src/test.c:211:53: warning: result of comparison of constant -1 with expression of type 'char' is always true [-Wtautological-constant-out-of-range-compare] while ((c = getopt(argc, argv, "hVv:f:b:Lpi:")) != -1)
solution taken from man -3 getopt manual DSD-7164
Signed-off-by: Andreas Fenkart andreas.fenkart@digitalstrom.com