[Gmsh] Gmsh 2.8.5 : Segmentation fault when exporting STEP file

[乔磊]

Dear all,

My Gmsh 2.8.5  encountered segmentation fault when exporting STEP file and
this error occurs at every run.
Detailed information follows:

##Error Message:

$ /Applications/Gmsh.app/Contents/MacOS/gmsh
2412SharpTE_loop.geo_unrolled.geo -0 -o foil.step
Info    : Running '/Applications/Gmsh.app/Contents/MacOS/gmsh
2412SharpTE_loop.geo_unrolled.geo -0 -o foil.step' [Gmsh 2.8.5, 1 node,
max. 1 thread]
Info    : Started on Wed Feb 11 23:33:08 2015
Info    : Reading '2412SharpTE_loop.geo_unrolled.geo'...
Info    : Done reading '2412SharpTE_loop.geo_unrolled.geo'
Info    : Writing 'foil.step'...
Segmentation fault: 11

##Gmsh version details
$  /Applications/Gmsh.app/Contents/MacOS/gmsh  -version
--------------------------------------------------------------------------
Petsc Release Version 3.1.0, Patch 8, Thu Mar 17 13:37:48 CDT 2011
       The PETSc Team
    petsc-maint at mcs.anl.gov
 http://www.mcs.anl.gov/petsc/
See docs/copyright.html for copyright information
See docs/changes/index.html for recent updates.
See docs/troubleshooting.html for problems.
See docs/manualpages/index.html for help.
Libraries linked from
/Users/geuzaine/src/petsc-3.1-p8/macosx_complex_mumps_seq/lib
--------------------------------------------------------------------------
2.8.5
$ /Applications/Gmsh.app/Contents/MacOS/gmsh  -info
Version          : 2.8.5
License          : GNU General Public License
Build OS         : MacOSX
Build date       : 20140709
Build host       : Christophes-Mac.local
Build options    : 64Bit Ann Bamg Bfgs Blas(VecLib) Blossom Chaco
DIntegration Dlopen Fltk Gmm Jpeg(Fltk) Kbipack Lapack(VecLib) MathEx Med
Mesh Metis Mmg3d Mpeg NativeFileChooser Netgen ONELAB ONELABMetamodel
OpenCascade OpenGL OptHom PETSc Parser Plugins Png(Fltk) Post RTree SLEPc
Salome Solver Tetgen(1.5) Voro3D Zlib
FLTK version     : 1.3.2
PETSc version    : 3.1.0
PETSc arithmetic : Complex
Packaged by      : geuzaine
Web site         : http://www.geuz.org/gmsh/
Mailing list     : gmsh at geuz.org

##System info
$ uname -a
Darwin QiaoL.local 14.1.0 Darwin Kernel Version 14.1.0: Mon Dec 22 23:10:38
PST 2014; root:xnu-2782.10.72~2/RELEASE_X86_64 x86_64

## Input file

see attached.

-- 
乔磊 (Lei Qiao)
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