Standardize NO_CCACHE flag and ccache definitions

[Alex Kozlov]

On Wed, Jun 18, 2008 at 05:48:38PM +0200, Alex Dupre wrote:
> Alex Kozlov ha scritto:
> >> It's necessary if you don't want to use ccache only for 1% of the 
> >> buildworld process.
> > I use CCACHE_NOHASH_SIZE_MTIME:
> 
> "It's not necessary to use CCACHE_HASH_COMPILER" != "I use 
> CCACHE_NOHASH_SIZE_MTIME, so every compiler I use I will get always the 
> same result."
Problem in make buildworld case is not compiler name.
Problem is that compiler rebuild itself and mtime alway different.
So I'm use switch exactly for this case and not depend on side effects
CCACHE_HASH_COMPILER. Also later is undocumented.


--
Adios