RFR: JDK-8069064 Various improvements and fixes in build system

[Magnus Ihse Bursie]

On 2015-01-15 16:32, Erik Joelsson wrote:
> Looks good to me.

Thanks. It turned out that I needed to integrate this via jdk9-client 
instead of jdk9-dev, as usual, to support the upcoming build-infra work, 
and to avoid an unneccessary merge clash with the changes of Visual 
Studio 2012 in jdk9-client. That in turn means I had to drop the fixes 
to compare.sh, since they depended on the resolved merge conflicts that 
I pushed the other day to jdk9-dev (but which are not as of yet in 
jdk9-client). Phew. I'll return to the compare.sh fixes in a follow-up 
bug when everything that's relevant has been integrated everywhere. :)

/Magnus

> /Erik
>
> On 2015-01-15 16:23, Magnus Ihse Bursie wrote:
>>  This fix is the result of preparatory work in the build-infra 
>> project. It includes:
>> * Remove duplicate detection of comm on Windows
>> * compare.sh enhancements and bug fixes
>> * Do not fail in SetupFoo macros on empty arguments
>> * Minor JavaCompilation enhancements
>> * Makefile warns for unknown control variables
>> * Improved "make help"
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8069064
>> WebRev: 
>> http://cr.openjdk.java.net/~ihse/JDK-8069064-fixes-from-build-infra/webrev.01
>>
>> /Magnus
>