Date: Tue, 20 May 2008 02:51:21 -0500 From: Dave Uhring <duhring@charter.net> To: Mark Andrews <Mark_Andrews@isc.org> Cc: freebsd-stable@freebsd.org Subject: Re: Buildworld Fails RELENG_7 Message-ID: <20080520075121.GA1512@charter.net> In-Reply-To: <200805200333.m4K3XF72030784@drugs.dv.isc.org> References: <200805200324.m4K3Ow5J030607@drugs.dv.isc.org> <200805200333.m4K3XF72030784@drugs.dv.isc.org>
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On Tue, May 20, 2008 at 01:33:15PM +1000, Mark Andrews wrote:
>
> And when tested does behave the way you describe.
>
> Mark
>
> drugs:9.5.x 13:30 {4371} % bash
> [marka@drugs ~/cvs/9.5.x]$ printenv | grep FOO
> [marka@drugs ~/cvs/9.5.x]$ FOO=ll
> [marka@drugs ~/cvs/9.5.x]$ export FOO
> [marka@drugs ~/cvs/9.5.x]$ printenv | grep FOO
> FOO=ll
> [marka@drugs ~/cvs/9.5.x]$ FOO=""
> [marka@drugs ~/cvs/9.5.x]$ export FOO
> [marka@drugs ~/cvs/9.5.x]$ printenv | grep FOO
> FOO=
> [marka@drugs ~/cvs/9.5.x]$ env -i PATH=$PATH printenv | grep FOO
> [marka@drugs ~/cvs/9.5.x]$
This is Solaris but bash is bash:
[duhring@einstein ~]$ printenv | grep CFLAGS
CFLAGS=-xO3 -m32 -xarch=native -mt -I/usr/sfw/include -I/usr/X11/include -I/opt/sfw/include
You have mail in /var/mail/duhring
[duhring@einstein ~]$ export CFLAGS=""
[duhring@einstein ~]$ printenv | grep CFLAGS
CFLAGS=
[duhring@einstein ~]$ export CFLAGS='-xO3 -m32 -xarch=native'
[duhring@einstein ~]$ printenv | grep CFLAGS
CFLAGS=-xO3 -m32 -xarch=native
[duhring@einstein ~]$ export CFLAGS=""
[duhring@einstein ~]$ printenv | grep CFLAGS
CFLAGS=
[duhring@einstein ~]$ env -i PATH=$PATH printenv | grep CFLAGS
[duhring@einstein ~]$
When I tell you that CFLAGS="", CFLAGS="", and a cursory
examination of my last compiler output would have shown you exactly
that.
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