Compiling isl-0.15 library

isl-0.15 is required to build GCC with the Graphite loop optimizations. You can download the isl-0.15 from ftp://gcc.gnu.org/pub/gcc/infrastructure/

Compiling isl-0.15

# bunzip2 isl-015.tar.bz2
# tar -xvf isl-0.15
# ./configure --prefix=/usr/local/isl-0.15  --with-gmp-prefix=/usr/local/gmp-4.3.2
# make && make install