salvage.c: In function 'corrupt':
salvage.c:91:2: error: conversion to 'long unsigned int' from 'off_t'
may change the sign of the result [-Werror=sign-conversion]
salvage.c:91:22: error: conversion to 'off_t' from 'long unsigned int'
may change the sign of the result [-Werror=sign-conversion]
salvage.c:92:21: error: comparison between signed and unsigned integer
expressions [-Werror=sign-compare]
salvage.c:92:49: error: signed and unsigned type in conditional
expression [-Werror=sign-compare]
salvage.c:92:3: error: conversion to 'long unsigned int' from 'off_t'
may change the sign of the result [-Werror=sign-conversion]