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From: David Abrahams (dave_at_[hidden])
Date: 2005-02-04 12:23:09

TEMPLIE Cédric <cedric.templie_at_[hidden]> writes:

>> Maybe, the "copy" command does not change the timestamps on files, so staged
>> project2.h is always considered out of date with regard to .rsp and .obj
>> files, which are generated, and so have current time as timestamp.
>> What happens if you
>> 1. Built everything
>> 2. Verify that this problem exists
>> 3. Touch project2.h in your tree
>> 4. Build again.
>> After that, invoking bjam again should not copy project2.h.
>> And a related question -- what command can be used to update timestamp on
>> Windows. On Unix, it's just "touch", but that command is not present on
>> Windows by default.
> Thanks :) you are totally right, the timestamp is not changed, so it
> tries to rebuild (copy) :(
> And it seems that it is the same for rsp files....
> The only way I found to change the date is to modify the file (like that
> the modification access date change), but I am looking for a better
> solution. I found some tools (a touch for windows) to do that, but these
> tools are not natively with windows :(
> So have you got a solution to change the timestamp when copying, or
> another idea ?

TYPE file1 > file2


Dave Abrahams
Boost Consulting

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