[bug] Conflict with built-in cmake findpackage scripts can break the build

[rconde01]

Describe the bug

Conan 2.3.1, Windows

• For "reasons" I need to use an old version of GLEW which conan center does not support and so i have a custom package/recipe
• Trying to reference this package, I get conflicts between the conan generated files and the delivered cmake FindGlew script
• The workaround is to make the conan package generate a Findglew

conan_find_package_conflict.zip

How to reproduce it

• Unzip the attach test case and run test.py
• It will fail to build
• Uncomment the Findglew generation in ./recipe/conanfile.py
• Run test.py again and it works

[rconde01]

Note I got the idea for the solution here, where @memsharded said:

For your own packages, this is discouraged. CMake find modules are considered legacy, just for some existing open source third party libraries, but for everything else, the recommendation (CMake recommendation, not Conan one) is to use Config files instead

I guess maybe this guidance just needs to be changed to "...or CMake delivers a findpackage"

[rconde01]

User error - @SpaceIm informed me that I was failing to specify the toolchain file