link_libraries
Link libraries to all targets added later.
link_libraries([item1 [item2 [...]]]
               [[debug|optimized|general] <item>] ...)
 Specify libraries or flags to use when linking any targets created later in the current directory or below by commands such as add_executable() or add_library(). See the target_link_libraries() command for meaning of arguments.
Note
The target_link_libraries() command should be preferred whenever possible. Library dependencies are chained automatically, so directory-wide specification of link libraries is rarely needed.
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Licensed under the BSD 3-clause License.
    https://cmake.org/cmake/help/v3.5/command/link_libraries.html