Cmake [verified] Download Module

include(ExternalProject) ExternalProject_Add( openssl_project URL https://openssl.org CONFIGURE_COMMAND ./config --prefix=${CMAKE_BINARY_DIR}/openssl BUILD_COMMAND make INSTALL_COMMAND make install ) Use code with caution.

include(FetchContent) FetchContent_Declare( googletest GIT_REPOSITORY https://github.com GIT_TAG release-1.12.1 ) FetchContent_MakeAvailable(googletest) Use code with caution.

If you'd like, I can help you by focusing on: cmake download module

Comparing this method to like Conan or Vcpkg

Start by including FetchContent in your CMakeLists.txt . Declare the Dependency: Specify the Name, Git URL, and Tag. Declare the Dependency: Specify the Name, Git URL, and Tag

Use file(DOWNLOAD ...) if the library is a simple header-only file.

Dependencies stay within the build folder, keeping the system clean. The Modern Standard: FetchContent The Modern Standard: FetchContent Before FetchContent

Before FetchContent , ExternalProject_Add was the primary tool. It operates at , which is better for "heavy" dependencies that don't need to be reconfigured often or use non-CMake build systems (like Make or Autotools). Example for Non-CMake Projects