[cmake-developers] [CMake] Debugging find_package() search behavior?

[Jean-Michaël Celerier]

> The find modules use find_* commands, and those use CMAKE_PREFIX_PATH.

Not always, some people sometimes feel like doing it by hand from scratch
with if(EXISTS ...). Sadly.



On Tue, Aug 29, 2017 at 5:49 PM, Brad King <brad.king at kitware.com> wrote:

> On 08/29/2017 11:33 AM, David Cole wrote:
> > That's correct:
> >
> > find modules do what they want, and most do not pay attention to
> > CMAKE_PREFIX_PATH.
>
> CMAKE_PREFIX_PATH *is* used by find modules.
>
> The find modules use find_* commands, and those use CMAKE_PREFIX_PATH.
> See the documentation of find_library, find_path, etc. for details.
> Each command searches an appropriate `<prefix>/<dir>` where `<dir>`
> is based on the kind of command doing the searching.
>
> -Brad
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