[Pkg-julia-devel] Julia parallel test

Peter Colberg peter at colberg.org
Thu Nov 12 16:59:50 UTC 2015


On Thu, Nov 12, 2015 at 02:14:51PM +0200, Graham Inggs wrote:
> So this might just be an issue in Ubuntu, in which case we should look at
> the differences in default compiler flags between Debian and Ubuntu [1].

It’s definitely not just an issue in Ubuntu, although the build does
succeed in Debian (with the __fpgetprec patch) and fails in Ubuntu.

I have the impression we have poked a beehive here.

powl etc are long double variants of math functions, which are useful
only on old x86 processors with x87 FP instructions and without SSE.
Julia will certainly never be using those functions, so it is unclear
why upstream would want to implement these other than for providing a
drop-in replacement for system libm.

I will push a commit upstream that tests the shared library to show
the underlinking failure that you noticed initially. From there we
can see what upstream’s plans are with regard to the long double
functions.

By the way, the openlibm test suite is making me a bit uncomfortable.
Lots of commented code, and I am not sure whether all implemented
functions are actually tested.

Peter



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