[CMake] CMAKE_ROOT path

[James Bigler]

>>>>This is the output from which and gmake:
>>>>
>>>>% which cmake
>>>>/home/sci/bigler/pub/irix/bin/cmake
>>>>% gmake
>>>>Building dependencies. cmake.depends...
>>>>CMAKE_ROOT = /usr/sci/local/cmake-1.8.3/share/CMake
>>>>
>>>>I built my copy from source and installed it to my local directory.
> 
> 
> This could be perfectly OK. I believe the full path to cmake is written into
> the Makefiles when cmake generates them. That way if you use one version of
> cmake to produce some Makefiles, any rules in the Makefiles that run cmake
> will use that path. This supports having Makefiles generated by a cmake that
> may not be the first cmake in your path, etc, etc. So if your Makefile was
> generated with /usr/sci/local/cmake-1.8.3/share/CMake then that will be the
> cmake used for any rules in the make process. If you want to change that
> tree to use a different cmake you must run the desired cmake on that tree
> explicitly. Just changing your path will not do it.
> 
> e.g.
> 
> % which cmake
> /home/sci/bigler/pub/irix/bin/cmake
> % /home/sci/bigler/pub/irix/bin/cmake ../whatever
> % gmake
> 
> == happiness...
> 
> I could be off base but that is what I'm guessing is going on here based on
> my quick read ...
> 
> Ken

Thanks.  I had to run cmake again (not just gmake) to get it to pick up 
the new path to cmake.

James