[CMake] CMake not honoring ENV variable with MSYS

[Mike Jackson]

Not really sure if this is a CMake issue or and MSYS issue or "operator 
error" BUT when I run cmake -G "MSYS Makefiles" from an msys shell to 
configure my project there is one environment variable that is NOT being 
honored.
   The variable (MXADataModel_INSTALL) is defined in the "My 
Computer->Properties->.... " where I have it defined to 
C:\Developer\VS9\MXADataModel. Now, in my .bash_profile I redefine it to 
  /c/Developer/GCC/MXADataModel.
    When I run cmake on my project I still get the "VS9" path. I have 
several other variables defined the same way (EXPAT, TIFF, HDF5, 
QT-4.4.3) and all those variables are over-ridden correctly and all 
those variables will use the "GCC" path instead of the "VS9" path when 
in an MSYS shell.
    I have checked the spelling, rewritten the .bash_profile a few 
different ways. I just don't "see" where I am screwing up for this one 
variable.
   Any help or places to look in my configurations would be helpful and 
very much appreciated.

Thanks
Mike Jackson