[CMake] Circular Dependancy?

[Mike Jackson]

I was updating some of my CMakeLists.txt files to use the  
ADD_SUBDIRECTORY command instead of the SUBDIRS command and now I am  
getting the following when I build:

make -C /Users/mjackson/Task_7/MXA_Workspace/PFImport/Build all
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/mjackson/Task_7/ 
MXA_Workspace/PFImport/Build
[ 66%] Built target MXADataModel
[ 83%] Built target MXAPFImport
[100%] Built target TernaryImport
make[1]: Circular all <- all dependency dropped.
make[1]: Circular all <- all dependency dropped.

If I revert back to SUBDIRS then this goes away. What is the "make 
[1]: Circular all <- all dependency dropped.", what did I do wrong  
and how do I correct it.

ADD_SUBDIRECTORY( ${PROJECT_SOURCE_DIR}/../MXADataModel $ 
{PROJECT_BINARY_DIR})


Thanks
--
Mike Jackson
imikejackson & gmail * com