Added GCC-4.9.0
Add GCC 4.9.0
GCC: add ISL to GCC-4.8.2
GCC: change name of mpfr patch
GCC: bring GCC-4.8.1-CLooG to work with ISL
GCC: use GNU_SOURCE
GCC: fix CLooG & ISL version on 4.8.x
GCC: use correct download url
Merge pull request #834 from wpoely86/gcc49

GCC 4.9.0