[Gmsh] Segmentation fault on extrude

[Anton Gladky]

Dear developers,

there is a bug on Launchpad bug-tracker [1].
The attached script crashes. Seems, the problem is in last lines:

//Fails:
wall2[] = Extrude  { {0, 0, 1}, {0, 0, 0},-Pi } { Line { wall[1] }; };
//Fails:
wall3[] = Extrude  { {0, 0, 1}, {0, 0, 0}, Pi } { Line { wall1[0] }; };

Could you, please, have a look at this script?

Thanks
Anton

[1] https://bugs.launchpad.net/ubuntu/+source/gmsh/+bug/886607
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