On Feb 17, 2005, at 12:59 PM, Albert Chin wrote:
From the autoconf manual:Commands like `cp -p' and `touch -r' typically do not copy file timestamps to their full resolutions (*note Limitations of Usual Tools::). Hence you should be wary of rules like this:
dest: src cp -p src dest
as `dest' will often appear to be older than `src' after the timestamp is truncated, and this can cause `make' to do needless rework the next time it is invoked. To work around this problem, you can use a timestamp file, e.g.:
dest-stamp: src cp -p src dest date >dest-stamp
I don't see any signs in it of `cp -p' being non-portable.
If this is true, then even if -p is portable, it potentially won't solve the problem. :-\
--
{+} Jeff Squyres
{+} [EMAIL PROTECTED]
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