On Mon, Oct 8, 2012 at 3:16 AM, Jonathan Wakely <jwakely....@gmail.com> wrote: > On 7 October 2012 21:31, Manuel López-Ibáñez wrote: >> On 7 October 2012 22:13, Jonathan Wakely <jwakely....@gmail.com> wrote: >>> >>> On Oct 7, 2012 12:00 AM, "NightStrike" <nightstr...@gmail.com> wrote: >>>> >>>> On Sat, Oct 6, 2012 at 7:30 AM, Manuel López-Ibáñez >>>> <lopeziba...@gmail.com> wrote: >>>> > Hi, >>>> > >>>> > GCC now requires ISL and a very new CLOOG but download_prerequisites >>>> > does not download those. Also, there is only one sensible place to >>>> >>>> As of what version is isl/cloog no longer optional? >>> >>> If they're really no longer optional then the prerequisites page and 4.8 >>> changes page need to be updated. >>> >>> The patch downloads isl and cloog unconditionally, does gcc build them >>> unconditionally if they're found in the source dir? If they are still >>> optional I don't want download_prerequisites to fetch files that will slow >>> down building gcc by building libs and enabling features I don't use. >> >> I guess they are optional in the sense that you can configure gcc to >> not require them. But the default configure in x86_64-gnu-linux >> requires isl and cloog. > > Are you sure? > > Seems to me the default is still the same as it always has been, i.e. > Graphite optimisations can be enabled if ISL and cloog are present, > but they're not "required". I can bootstrap without ISL anyway.
If good enough ISL and cloog are not found graphite is simply disabled unless you explicitely enabled it via specifying either of ISL or cloog configury. Richard.
