POLA.. missing --sysroot option in ld?

[Julian Elischer]

On 5/1/14, 9:18 PM, Brooks Davis wrote:
> On Wed, Apr 30, 2014 at 11:02:31PM -0600, Warner Losh wrote:
>> On Apr 29, 2014, at 10:23 PM, Julian Elischer <julian at FreeBSD.org> wrote:
>>
>>> On 4/30/14, 10:36 AM, Julian Elischer wrote:
>>>> In our 8.0 based systems at $JOB our build environment made heavy use of the --sysroot option in gcc and ld.
>>>>
>>>> We are trying to move up to a newer release but suddenly the --sysroot option has disappeared.
>>>>
>>>> we get the message "/usr/bin/ld: this linker was not configured to use sysroots"
>>> more spefically the following command (from 'configure') fails on "near 9"
>>> and succeeds on 8.0.
>>>
>>> configure:3352: /usr/bin/gcc -Wall -Wno-unused-parameter  -nostdinc -isystem /usr/build/buildroot/tools/x86_gcc4.2.4/usr/include --sysroot /usr/build/buildroot/tools/x86_gcc4.2.4 -Wall -Wno-unused-parame
>>> ter  -nostdinc -isystem /usr/build/buildroot/tools/x86_gcc4.2.4/usr/include --sysroot /usr/build/buildroot/tools/x86_gcc4.2.4  --sysroot /usr/build/buildroot/tools/x86_gcc4.2.4 -L/usr/build/buildroot/too
>>> ls/x86_gcc4.2.4/lib -L/usr/build/buildroot/tools/x86_gcc4.2.4/usr/lib conftest.c >&5
>>>> Does anyone know what happened?  and when, and by who?
>>>> I have looked in the Makefiles and configuration files in SVN and I can't see a change that would have done this..
>>>> of course the building of these tools is rather complex so I may have missed some place..
>> Yea, I looked too and don?t see anything. I thought it was broken in more like 2005 not 2011. You?re only hope is to bisect the tree down to the change that caused it?
> It's been broken since at least the last binutils import and probably
> longer since the inane ld behavior of activating --sysroot only when
> built with a specified sysroot is from upstream.  The fix is trivial, just
> merge r257268 and r257530 to the branch you are using.

yeah I did that yesterday..  worked like a charm.

> -- Brooks