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Date: Mon, 9 Oct 1995 17:42:13 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199510090742.RAA30470@godzilla.zeta.org.au>
To: current@freefall.freebsd.org
Subject: Re: cvs commit: src/usr.bin/xinstall install.1 xinstall.c
Sender: owner-current@FreeBSD.org
Precedence: bulk

I just committed this change to `install':

>  Add options -C (same as -c except for preserving the modification
>  time of the target if the target file is the same as the source),
>  -d (debug), and -p (same as -C except for preserving the modification
>  time of the source if the target doesn't exists or is different from
>  the source.

This is useful for stopping `make install' in /usr/src from clobbering
the timestamps on everything installed so that all binaries don't
immediately become out of date because they depend on the installed
libc.a.  It is also useful for avoiding unnecessary backups.  It will
be useful for avoiding complications to avoid clobbering timestamps
when installing headers.

To use this option for everything installed by `make install', add

	INSTALL=		install -C

to /etc/make.conf.

Bruce