RFR: JDK-8031759 Configure should handle overrides of tools better

[Dave Pointon]

Hi Magnus ,

On Wed, 2014-01-22 at 16:29 +0100, Magnus Ihse Bursie wrote:
> Sure, I forgot about the greadlink addition. I'll fix that. 
> 
> Also, your comment got me wondering if this is the wrong solution after all. We have tried hard to stay clear of letting environment variables affect the build, since they are "invisible", impossible to check and creates hard to debug problems. And now I'm letting in a hoard. :-/ Overriding tools is one thing, but I'd really prefer to do it on the configure command line. 
> 
> I'll see if I can tweak configure to only accept overrides as command line arguments, and emit warnings or errors if an incorrect override is attempted. 
> 
> Stay tuned for a new webrev. 
> 
> /Magnus
> <snip>

I'd be interested to learn of the context surrounding your assertions
WRT environment variables, specifically regarding their invisibility and
impossibility to check.


TIA & rgds ,
-- 
Dave Pointon FIAP MBCS

Now I saw, tho' too late, the folly of beginning a work before we count
the cost and before we we judge rightly of our strength to go thro'
with it - Robinson Crusoe