[Bug tree-optimization/66117] GCC can not compile when graphite is enabled, due to missing isl headers.

[pbeeler80 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66117

--- Comment #1 from Paul Beeler <pbeeler80 at gmail dot com> ---
Here is the gcc source:
https://github.com/SaberMod/GCC_SaberMod/tree/6.0.0
Also this patch seems to fix the issue:
https://github.com/SaberMod/GCC_SaberMod/commit/635b86c35d539bf229e4d4652fc67afe632589a4