the disk. You can disable its usage with @env{$REDO_NO_SYNC=1}
environment variable, for speeding up the build process.
-@command{goredo} determines target is out-of-date by comparing its size,
-@code{ctime} and content's hash, if @code{ctime} differs. Depending on
-the filesystem you use, probably you can not trust its @code{ctime}
-value at all. In that case you can set @env{$REDO_INODE_NO_TRUST=1} to
-forcefully verify the hash.
-
There are other commands that could be found in other implementations too:
@table @command