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To: Bruce Evans <bde@zeta.org.au>
cc: freebsd-current@FreeBSD.ORG
Subject: Re: make -DNOCLEAN world 
In-reply-to: Your message of "Sun, 17 Aug 1997 22:47:17 +1000."
             <199708171247.WAA16866@godzilla.zeta.org.au> 
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Date: Sun, 17 Aug 1997 18:55:02 +0400
From: Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
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> >-DNOCLEAN now almost useless in make world. 'make bootstrap' clobber 
> >subdirectories in /usr/obj/usr/src/tmp/usr/include, making them symlinks,
> >and 'make includes' replace the symlinks to directories again. So,  almost all 
> >source file rebuilded. 
> 
> Doesn't `install -C' preserve the timestamps?

No. To quote the manpage:

     -C      Copy the file, as if the -c option is specified, except if the
             target file already exists and the files are the same, then don't
             change the modification time of the target.

Dima