Implicit linker search path detected for language
Compilers typically pass directories containing language runtime
libraries and default library search paths when they invoke a linker.
These paths are implicit linker search directories for the compiler’s
language. CMake automatically detects these directories for each
language and reports the results in this variable.
When a library in one of these directories is given by full path to
target_link_libraries() CMake will generate the
-l<name> form on
link lines to ensure the linker searches its implicit directories for the
library. Note that some toolchains read implicit directories from an
environment variable such as
LIBRARY_PATH so keep its value consistent
when operating in a given build tree.