How To Install Your Program Using CMake

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By default, CMake sets the CMAKE_INSTALL_PREFIX to /usr/local on UNIX systems.

It is common to install shared libraries to /usr/local/bin and header files to /usr/local/include//. This can be done by adding the following commands to your CMakeLists.txt:

install(TARGETS yourLibName

install(DIRECTORY ${projectName_SOURCE_DIR}/include
   DESTINATION include)

It is NOT recommended to install to /usr/bin/ and /usr/local/ as these are typically reserved for applications managed by the primary package manager for the UNIX distribution, e.g. apt-get on Ubuntu and other Debian systems.

install(DIRECTORY … copies the entire contents of the directory (excluding the directory itself) into the destination directory.

It is recommended to bundle all the headers of your application under a single src/include/ directory in your source code. This means that CMake can easily copy this directory into /usr/local/include with a single install(DIRECTORY command. The directory under your src/include/ directory is so that your header files don’t pollute the /usr/local/include/ directory, as this directory can get large, making it hard to uninstall your program, and increases the risk of naming conflicts!

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