[CMake] ExternalProject and another CMake based project.

[Peter Visser]

Hello all,

I would like to use the ExternalProject_Add command in one CMake project 
to include another CMake based project. Basically this works great, the 
project is downloaded, configured, build, tested and installed. (Great 
command, the ExternalProject!)

The libraries of the included project contain version numbers, so I have 
used the install(export) to generate a <project>.cmake file that can be 
included in the "top" CMake project. The problem is that the 
<project>.cmake is not available at CMake time. Is there a work-around 
so that I don't need to hardcode all the libraries and versions numbers 
in the "top" CMake project ?

I looked in the mailinglists and found that Mike Jackson asked the same 
question (03/24/2010). In the mean time there are perhaps new features 
in CMake or somebody created a smart work-around ?

Peter.