[Cmake] Build with shared libraries on SGI

[Lorensen, William E (CRD)]

Seems I can no longer build shared libraries on my irix 6.5 system.

I get:
rm -f libCxxTypes.so
CC -n32 -LANG:std -OPT:limit=10000 -woff 3439 -woff 1355   -shared -rdata_shared  -o \
  libCxxTypes.so \
  cxxArrayType.o cxxClassType.o cxxConversions.o cxxCvQualifiedType.o cxxEnumerationType.o
cxxFunctionType.o cxxFundamentalType.o cxxPointerToMemberType.o cxxPointerType.o cxxReferenceType.o
cxxType.o cxxTypeSystem.o  -L/home/lorensen/Insight-irix65/Code/Common
-L/home/lorensen/Insight-irix65/Code/Numerics/vxl
-L/home/lorensen/Insight-irix65/Utilities/Cable/CxxTypes
-L/home/lorensen/Insight-irix65/Utilities/Cable/Expat
-L/home/lorensen/Insight-irix65/Utilities/Cable/Parsers
-L/home/lorensen/Insight-irix65/Utilities/Cable/Generators -lpthread
-Wl,-rpath,/home/lorensen/Insight-irix65/Code/Common:/home/lorensen/Insight-irix65/Code/Numerics/vxl:
/home/lorensen/Insight-irix65/Utilities/Cable/CxxTypes:/home/lorensen/Insight-irix65/Utilities/Cable/
Expat:/home/lorensen/Insight-irix65/Utilities/Cable/Parsers:/home/lorensen/Insight-irix65/Utilities/C
able/Generators 
gmake[3]: *** [libCxxTypes.so] Bus error

Static build seems fine so far...

Bill