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Date: Thu, 27 Jun 1996 16:10:13 -0600 (MDT)
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From: Nate Williams <nate@mt.sri.com>
To: "Jordan K. Hubbard" <jkh@time.cdrom.com>
Cc: Scott Blachowicz <scott@statsci.com>, current@freebsd.org
Subject: Re: Building inside of /usr/src? 
In-Reply-To: <7251.835912432@time.cdrom.com>
References: <m0uZNv8-00060AC@main.statsci.com>
	<7251.835912432@time.cdrom.com>
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Jordan K. Hubbard writes:
> > (totum)(root) # cd /usr/src/lib/libc
> > (totum)(root) # unsetenv PWD
> > (totum)(root) # make cleandir
> > (totum)(root) # make obj
> > /usr/obj/a/src/lib/libc created for /a/src/lib/libc
> 
> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRH
> HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
> HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
> HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> 
> Ahem.  Sorry, I feel better now! :-)
> 
> Check this out in make:
> 
>         if ((pwd = getenv("PWD")) != NULL) {
>             if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino &&
>                 sa.st_dev == sb.st_dev)
>                 (void) strcpy(curdir, pwd);
>         }
> 
> Anyone else think that this is totally bogus and should be removed?
> It certainly EXPLAINS a few things! :-)
> 
> With all the shells in existance out there, I don't think that $PWD
> should or can be trusted.  Comments?

Well, you already took it out, so I guess comments don't matter, but
there's *probably* a reason for doing it.  You're best bet would be to
remove it *locally* and then test the change to see if bad things happen
before spamming the repository making us find all the bugs. :(


Nate