[CMake] Why are blank-delimited strings in commands escaped on Linux?

[Bill Hoffman]

Alan W. Irwin wrote:
\
> As for your request to explain why the second and third results are
> identical, I leave that to those who understand how and why CMake has been
> implemented in the way it has. I am not in that group, which is why I 
> always
> fall back to simple experiments like above to determine CMake behaviour.
> 
> Alan

These pages might be of help:

http://www.cmake.org/cmake/help/syntax.html
http://www.cmake.org/Wiki/CMake/Language_Syntax

-Bill