[CMake] Segfault with cmake 2.8.0 rc4 and CGAL-3.5

[Orion Poplawski]

Trying to configure CGAL 3.5 with cmake 2.8.0 rc4 on Fedora and cmake is 
segfaulting.  Quick analysis shows that it's faulting here:

#1  cmMakefile::RaiseScope (this=<value optimized out>)
     at /usr/src/debug/cmake-2.8.0-rc4/Source/cmMakefile.cxx:3392
3392              this->LocalGenerator->GetParent()->GetMakefile())
(gdb) list
3391      else if(cmMakefile* parent =
3392              this->LocalGenerator->GetParent()->GetMakefile())
3393        {

looks like this->LocalGenerator->Parent is null here.

(gdb) print this->LocalGenerator->Parent
$3 = (cmLocalGenerator *) 0x0

Does there need to be check for it being null, or should it never be null?

-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA/CoRA Division                    FAX: 303-415-9702
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