[CMake] CMAKE_ROOT path

[James Bigler]

>>> If I have more than one installation of cmake on a system, how do I 
>>> get cmake to find the correct CMAKE_ROOT that corresponds to the 
>>> cmake I'm using?  Currently two different cmakes are using the same 
>>> CMAKE_ROOT.
>>
>>
>>
>> Where are the two cmake builds/installs and what root are they using?
> 
> 
> The system wide installation is in:
> 
> /usr/sci/local/cmake-1.8.3/bin/cmake
> 
> Modules are in:
> 
> /usr/sci/local/cmake-1.8.3/share/CMake/Modules
> 
> I put a new local installation in my home directory:
> 
> /home/sci/bigler/pub/irix/bin/cmake
> 
> With Modules in:
> 
> /home/sci/bigler/pub/irix/share/CMake/Module
> 
> I added this to my CMakeLists.txt
> 
> MESSAGE("CMAKE_ROOT = " ${CMAKE_ROOT})
> 
> 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.
> 
> James

I also tried to add this command to my top level CMakeLists.txt file:

SET(CMAKE_ROOT /home/sci/bigler/pub/irix/share/CMake)

This produces strange errors like this one:

Make Error: Error in cmake code at
/home/sci/bigler/pub/irix/share/CMake/Modules/CheckIncludeFile.cmake:16:
IF An IF command had incorrect arguments: ${ARGC} EQUAL 3

This file used in 1.8.3 is different and doesn't have the ARGC stuff.  I 
printed out the value and it's blank.

Thanks,
James