[Cmake] cmake build on sgi

[Bill Hoffman]

Because the SGI compiler has warnings in <iostream>, if you configure 
cmake with -fullwarn, it will not build correctly.

Since, cmake does not use the same flags for building other programs, this
is not really an issue.   If you really want to build with -fullwarn, then
do this:

( setenv CXXFLAGS "-LANG:std -fullwarn -woff 1424 -woff 3201" ; ../CMake/configure )



-Bill