Clion Add External Library Site

Now go forth and link without fear! Have a library that just won’t cooperate? Drop the error message in the comments, and I’ll help you debug it.

find_package(PkgConfig REQUIRED) pkg_check_modules(LIBUSB REQUIRED libusb-1.0) target_link_libraries(my_app PRIVATE $LIBUSB_LIBRARIES) target_include_directories(my_app PRIVATE $LIBUSB_INCLUDE_DIRS) Best for: Automatically downloading libraries from GitHub during configuration. clion add external library

You have two files: a header ( .h ) and a library binary ( .lib , .a , .so , .dylib ). You need to tell CMake both where to find the headers and which library file to link. # Tell compiler where headers are target_include_directories(my_app PRIVATE /path/to/library/include) Tell linker where the .lib file is target_link_libraries(my_app PRIVATE /path/to/library/lib/mylib.lib) For a shared library ( .dll / .so ): Same as above, but after building, you must ensure the .dll or .so is in the same folder as your executable or in your system PATH / LD_LIBRARY_PATH . The Cleaner Way: Using Variables set(MY_LIB_DIR "/usr/local/mylib") target_include_directories(my_app PRIVATE $MY_LIB_DIR/include) target_link_libraries(my_app PRIVATE $MY_LIB_DIR/lib/mylib.so) Pro tip: Use add_library(IMPORTED) for maximum control: Now go forth and link without fear

By Alex Mitchell | Estimated read time: 8 minutes but after building

This is the gold standard. Instead of hardcoding paths, you write:

When you reload CMake in CLion, it will clone fmt , build it, and link it—all automatically.

find_package(Boost 1.75 REQUIRED COMPONENTS filesystem system) if(Boost_FOUND) target_link_libraries(my_app PRIVATE Boost::filesystem Boost::system) endif() CMake will automatically search standard system paths, or paths you hint via -DCMAKE_PREFIX_PATH . Not every library provides CMake configs. For those, you can use pkg-config (common on Linux):