* report negative free space for user. Notice. blk_reserved
* will start to diminish after this. */
#if HAVE_STATVFS
- /* Cast is needed to avoid compiler warnings.
+ /* Cast and temporary variable are needed to avoid
+ * compiler warnings.
* ((struct statvfs).f_bavail is unsigned (POSIX)) */
- if (((int64_t) statbuf.f_bavail) < 0)
+ int64_t signed_bavail = (int64_t) statbuf.f_bavail;
+ if (signed_bavail < 0)
statbuf.f_bavail = 0;
#elif HAVE_STATFS
if (statbuf.f_bavail < 0)