Re: Keeping last-modified dates

On Tue, 29 Aug 2006 14:36:24 +0100, "Andrew Webb"
<andrew.microi@gmail.com> wrote:

>As Steve Fairhead says in a recent, related thread: "one could
>argue just as hard for timestamps to be preserved *because* of
>makefiles".

You could try, but I don't think you would be very successful. If you
preserve modification times, you fall in to the following trap:

1-Aug: Alice checks out file foo.c, modification date 1-Aug.
2-Aug: Bob modifies, commits foo.c
3-Aug: Alice does a make. foo.c is compiled,
       creating foo.o timestamped 3-aug.
4-Aug: Alice does a 'svn update'. foo.c arrives timestamped 2-Aug
       Alice does a make. foo.c is not compiled, despite being
       changed since the last compilation, as foo.c is timestamped
       2-Aug (when Bob made the change), which is before foo.o was
       created (3-Aug).

Greg

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This post represents the views of the author and does
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