about GCC dependencies cloog/ppl/isl

[niXman]

Hello,

I produce MinGW builds already about a year. In builds are used
gmp+mpfr+mpc+ppl+cloog. Now I can not remember why I use ppl, and on
the basis of what documentation I have come to this.
Accidentally have I read the list of prerequisites for GCC and found
that there is not a word about ppl, but says only about cloog and isl.
But, nevertheless, I configure GCC using the option '--with-ppl', and
my builds depend on libppl_c-4.dll.
Therefore, I want to find out do I need to use ppl? Is there any
difference what to use - ppl or cloog+isl? What is the difference?


Thanks.


-- 
Regards,
niXman
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