[CMake] Second post: find_package with config file always set xyz_FOUND to true?

[Anton Deguet]

Hello,

I haven't heard anything following my previous post.  Is there any chance someone could provide some guidance?

Sincerely,

Anton

On Aug 29, 2011, at 6:02 PM, Anton Deguet wrote:

> Hello,
> 
> I am trying to use the following syntax:
> find_package (xyz REQUIRED xyz1 xyz2) using a config file, i.e. NOT Findxyz.cmake.
> 
> I have a file named xyz-config.cmake that contains some code to check if the required components are available or not (based on how xyz was compiled).  Ideally I would like the find_package command to set xyz_FOUND to false if:
> - xyz-config.cmake file is not found (that's working by default)
> OR
> - xyz-config.cmake file is found BUT one or more component is missing
> 
> In my xyz-config.cmake, I tried:
> - set (xyz_FOUND FALSE)  # overall package not found as required
> - set (xyz2_FOUND FALSE)  # component not found, hoping find_package would compare this to the list xyz_FIND_COMPONENTS
> 
> But in all cases, it seems that find_package resets xyz_FOUND to 1 as long as the file xyz-config.cmake is found.  Is there a way to set xyz_FOUND to 0 within xyz-config.cmake?
> 
> Anton
> 
>