2018-03-23 10:21 GMT+01:00 Mario Emmenlauer <[email protected]>:
>
> Thanks PF, I think this makes more sense now! I was assuming that
> cmake always prefers CMAKE_PREFIX_PATH over builtin paths. But as you
> clarified, that only applies to libraries that provide find_package
> support.
>
> This is actually quite unfortunate. Then I don't see an easy way to
> enforce usage of specific libs. As an example, if I want to enforce a
> patched libtiff (that does not itself provide find_package support)
> the only "safe" way is to replace the system libtiff. Otherwise any
> package might just find the system version first without me even
> knowing.
>
You can always ship your own/patched version of Find<Whatever>.cmake
module with your
project source and build the 'local' override logic in it for every
project/lib that does not provide a find_package.
Be sure to APPEND your local cmake module path (CMAKE_MODULE_PATH)
something like:
list(APPEND CMAKE_MODULE_PATH ${AFS_SOURCE_DIR}/cmake)
before using find_package etc...
I find it a "safer" solution than system lib replacement.
My opinion though.
--
Eric
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