Timestamp of the resource. If unknown, this should be set to 0. In such a
case, the parent build system will compute the value when needed. This is
used by the parent build system to determine if the checksum needs to be
recomputed.
For files and directories, this is its last modification time.
Timestamp of the resource. If unknown, this should be set to 0. In such a case, the parent build system will compute the value when needed. This is used by the parent build system to determine if the checksum needs to be recomputed.
For files and directories, this is its last modification time.