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

[Magnus Ihse Bursie]

On 2015-01-15 18:33, Volker Simonis wrote:
> I'm aware that this mail degenerated more into a wish-list than a
> review:)  Maybe you find it useful nevertheless.

It's full of good suggestions! I'll definitely try to improve the 
makefile usability based on your suggestions. But, as you say, it's a 
bit too much for this fix :)

/Magnus