[CMake] color output with GNU Screen

[matt]

Hi,

I'm using GNU Screen and am having a hard time getting color output.  Oddly, 
on my amd64 system, it works fine.  However on my x86 system, no color 
output.  I can get color output outside of  screen session.

Using CMake 2.4.8 on gentoo.

Thanks,
thewtex