Core was generated by `bzfs'.
Program terminated with signal 11, Segmentation fault.

#0  Obstacle::isDriveThrough (this=0x0) at Obstacle.cxx:89
#1  0x80fc4d4 in MeshFace::print (this=0x820a500, out=@0x81ac980)
    at MeshFace.cxx:734
#2  0x80fae23 in MeshFace::finalize (this=0x820a500) at MeshFace.cxx:108
#3  0x80fab87 in MeshFace::MeshFace (this=0x820a500, _mesh=0x0, 
    _vertexCount=4, _vertices=0x81b58e0, _normals=0x0, _texcoords=0x81b5900, 
    _bzMaterial=0x0, physics=-1, _noclusters=false, bounce=false, drive=true, 
    shoot=true) at MeshFace.cxx:71
#4  0x8100afd in Teleporter::makeLinks (this=0x820a400) at Teleporter.cxx:132
#5  0x8100817 in Teleporter::finalize (this=0x820a400) at Teleporter.cxx:69
#6  0x81004b5 in Teleporter::Teleporter (this=0x820a430, p=0x8204608, a=0, 
    w=0.125, b=0, h=0, _border=1, _horizontal=false, drive=false, shoot=false)
    at Teleporter.cxx:38
#7  0x8070deb in CustomGate::write (this=0x8204600, world=0x81dca00)
    at CustomGate.cxx:48
#8  0x805ba0f in BZWReader::defineWorldFromFile (this=0x81b5750)
    at BZWReader.cxx:263
#9  0x80c8625 in defineWorld () at bzfs.cxx:1170
#10 0x80ddfb3 in main (argc=51, argv=0xbfbff998) at bzfs.cxx:4410