RFR: JDK-8035751 Clean up Visual Studio detection logic

[Tim Bell]

Hi Magnus

Looks good to me as well.

Tim

On 03/24/14 04:20, Erik Joelsson wrote:
> I think it looks good overall and it's good to clean this up.
>
> toolchain_windows.m4:
> 204: not your change but the typo stings my eyes and could be fixed 
> while in the area. (corrent?)
>
> I wonder if it would be better to move the deletion of the temporary 
> script files to later in the function so that they are still around if 
> it fails, for easier debugging?
>
> /Erik
>
> On 2014-03-24 12:04, Magnus Ihse Bursie wrote:
>> This bug was triggered by the issue in JDK-8035725. Had the VS 
>> detection logic been more transparent, that bug would not have had to 
>> happen.
>>
>> We need to rewrite the VS detection so that it is much more 
>> controlled, and do not run an unchecked shell script that modifies 
>> arbitrary environment variables. We can never re-create the same 
>> circumstances during "make time" as we have during "configure time" 
>> in that case. Instead, we should systematically set only those 
>> variables that are actually needed.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8035751
>> WebRev: 
>> http://cr.openjdk.java.net/~ihse/JDK-8035751-clean-up-visual-studio-detection/webrev.01
>>
>> /Magnus
>