aux-item-def-scan.c:1893: warning: 'yy_flex_realloc' defined but not used
aux-item-def-scan.c:1376: warning: 'yyunput' defined but not used
getopt.c:451: warning: 'indfound' might be used uninitialized in this function
fsusage.c:104: warning: unused parameter 'disk'