[CMake] problems detecting a required version of a library

[Brad King]

Scott Amort wrote:
> Hello,
> 
> I am in the process of converting my C++ library project from autotools
> to CMake.  So far, things are working very well.  However, I have come
> across a strange problem.  I have written a cmake module that attempts
> to detect if ANTLR is installed, by checking antlr-config (this is all
> done on Linux, btw).  I'm using EXECUTE_PROCESS to call `antlr-config
> --libs', which outputs a value that I can add to TARGET_LINK_LIBRARIES

What is the output value of "antlr-config --libs"?  What is the command 
you are using to store the value in the cache?

-Brad