Fixed bug 4594 - Fix install location of CMake targets on Apple platforms

tschwinger

Followup to #3651

As already noted by Ryan, no framework is being built, so we better install to lib/cmake.

That code was originally part of a patch submitted by David Demelier, whose credit BTW got lost (I combined his patch for #3572 with fixes for #2576 and #3613 resulting in #3651 because things started to depend on another).

I tested that the configuration files are found correctly in the new location on MacOS X based on a hint to the root (see https://cmake.org/cmake/help/latest/command/find_package.html#search-procedure).
1 file changed