[CMake] Error adding rule using 2.4.1 beta

[Reggie Burnett]

We have a relatively small project (about 20 sub projects) that now report
tons of "Error adding rule for /dir1/dir2/cmakelists.txt" for all of our sub
projects.  This is after upgrading to 2.4.1 beta.  Are there changes to some
of the standard commands and rules that might cause this?  We deleted our
cache and the generated cmake directories in the subprojects to no avail.

Thanks
Reggie
MySql, Inc.