On Tue, Jan 17, 2012 at 1:39 PM, William Stein <wst...@gmail.com> wrote: > On Mon, Jan 16, 2012 at 3:43 PM, William Stein <wst...@gmail.com> wrote: >> On Mon, Jan 16, 2012 at 9:26 AM, John H Palmieri <jhpalmier...@gmail.com> >> wrote: >>> >>> >>> On Monday, January 16, 2012 7:42:49 AM UTC-8, William wrote: >>>> >>>> Hi, >>>> >>>> A major blocker for Sage-5.0 is supporting OS X (version 10.7 -- the >>>> version that has been out for months now). >>>> >>>> Fortunately, it is now "relatively easy" to build sage-5.0.beta1 on OS >>>> X 10.7 with XCode 4.x, and have it start up. >> >> After building Sage on OS X 10.7, "make test" did this: > > For the record, running tests with "sage -t devel/sage/sage" yields > hundred(s) of failing files: > > http://wstein.org/home/wstein/tmp/test-sage-5.0.beta1-osx10.7.txt > > It could be that most of these boil down to some code at the core of > PARI (the bezout function) being miscompiled. > > There is a discussion about this from August 2011 here: > > http://pari.math.u-bordeaux.fr/archives/pari-dev-1108/msg00000.html > > It unfortunately appears based on the mailing list -- and searching > through the ** 5 months ** since then -- that nothing at all was done > to try to fix the problem, even though I had setup access to 10.7 for > the Pari developers. Probably the main problem is that the machine I > setup -- sqrt5.math.washington.edu -- is on the CS network, and for > some reason it keeps getting kicked off. > > This really sucks. Maybe I can rewrite their bezout to get around > the problem.
Another option is to turn of optimization (-O0) when building part of PARI under XCode 4.x, since the problem is bad compiler optimization. I just tried, export SAGE_DEBUG="yes", then building PARI with SAGE_CHECK="yes", and I get: "The PARI self-tests all passed". So something based on optimization flags is the workaround I'll pursue for now. Something that is slightly slower than optimal is way better than infinitely slower. -- William -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
