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[cgal-discuss] lib-gmp hang with CGAL bezier curves on OS X


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  • From: Ben Supnik <>
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  • Subject: [cgal-discuss] lib-gmp hang with CGAL bezier curves on OS X
  • Date: Fri, 24 Sep 2010 14:21:00 -0400

Hi Y'all,

I seem to be hitting a configuration problem when using CGAL. Here are the configuration details:

- CGAL 3.4
- The problem occurs on OS X, but not Linux.
- The problem occurs whether I use 10.6 (which defaults to GCC 4.2) or 10.5 (where I have forced GCC 4.2 in a few places, but others may fall through).
- CGAL has -frounding-math set, as expected.
- libgmp and libmpfr pass their self checks.

But...when I go to convert a quite trivial cubic bezier to its monotone sub-curves (as part of using the arrangement of bezier curves) I seem to hang in gmp.

Are there known configuration issues with gmp and CORE on OS X, particularly on 10.6?

Thanks!
Ben
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