On Sat, 2017-08-05 at 21:43 -0400, Stefan Monnier wrote:
> I need to update some files whenever a symlink changes, even if the new
> target of the symlink is an old file.
> How can I do that with GNU Make?
Use the latest mtime between symlinks and target.
From the manual:
On systems that support symbolic links, this option causes make to
consider the timestamps on any symbolic links in addition to the
timestamp on the file referenced by those links. When this option is
provided, the most recent timestamp among the file and the symbolic
links is taken as the modification time for this target file.
Supported in GNU make 3.81 and above.
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