Please review wip/gcc47

Hi,

I have just imported the current development version 4.7 of gcc.
It uses cloop and ppl for better loop optimization (graphite).
Java works on Linux, at least I was able to compile a simple HelloWorld
program into an executable. Make test is still running. Java builds but
does not yet work on NetBSD, so you might disable the build of Java if
you are sparse on time or memory.  

Builds under Scientific Linux 6.0 x86_64 and NetBSD 5.99.53 amd64.

Cheers,

Kai-Uwe


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