[cmake-developers] User vs CMake include mismatch handling

[Alexander Neundorf]

On Saturday 20 November 2010, Alexander Neundorf wrote:
> On Thursday 18 November 2010, Brad King wrote:
> > On 11/18/2010 04:20 PM, Alexander Neundorf wrote:
> > > The direct call of find_package(ZLIB) from CMakeLists.txt would get the
> > > FindZLIB.cmake from CMAKE_MODULE_PATH, since here somebody outside
> > > CMAKE_ROOT is the includer.
> >
> > Okay, that works for the case of dependent find-modules as long as the
> > project is aware of all the dependencies.  What about fixes to compiler
> > info files?  We don't want projects to have to make copies of all the
> > Modules/CMake*Information.cmake files and their dependencies.
...
> What can be done...
I think this would be the thing to do (didn't test, but should work):

cmake_minimum_required(VERSION 2.8.4)

cmake_policy(SET CMP0017 OLD)
project(MyProject C CXX)
cmake_policy(SET CMP0017 whatever_they_like)


(if there wouldn't be 2.8.4 required at the top, it would work anyway, but 
with warnings, if the policy goes in to cmake and is WARN by default).

Alex