CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES — CMake 3.5.2 Documentation

# CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES

Implicit linker search path detected for language `<LANG>`.

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.