> > > > It has been a while since I tried to bootstrap gcc and with the > > latest > > production release 5.2.0 and I see on the "Prerequisites for GCC" > > page > > that "ISL Library version 0.15, 0.14, 0.13, or 0.12.2" is required > > as > > per https://gcc.gnu.org/install/prerequisites.html > > It's not required, because it's only used for the optional Graphite > optimisations. > Thank you for the reply. My issue here is that it is on the "Prerequisites" page as a clearly needed piece and not merely optional. It should be marked as an optional piece and not a "Prerequisite". > > Wondering if isl 0.15 is really ready to go or should I use a > > previous > > version or can I remove the isl bits entirely ? > > You don't need ISL to build GCC and can remove it entirely. Will do. I have never seen the cloog or isl bit compile on Solaris. Ever. Once. In years. Ever. So it was very frustrating to see the ISL bits as a "required" and "needed" piece. No worries .. I'll give it a try without ISL and then try again later with bits from ./contrib/download_prerequisites as you suggest. Dennis