How to Find Installed Packages II

In most cases, we can expect some variables to be set when we call find_package(), whether we're using a built-in find-module or a config-file bundled with a package (assuming that the package was found):

• <PKG_NAME>_FOUND

• <PKG_NAME>_INCLUDE_DIRS or <PKG_NAME>_INCLUDES

• <PKG_NAME>_LIBRARIES or <PKG_NAME>_LIBS

• <PKG_NAME>_DEFINITIONS

• IMPORTED targets specified by the find-module or config-file

The IMPORTED targets

The last point is really interesting—if a package supports so-called ...