How to Set Include Directory Per Project In Cmake?

In CMake, to set an include directory per project, you can use the syntax target_include_directories in your CMakeLists.txt file. This command specifies the directories in which to search for header files for a specific target in your project. By specifying the include directories on a per-target basis, you can easily manage dependencies and build configurations for each component of your project separately. This allows for a more organized and modular code structure. To set an include directory for a specific target, you can use the following syntax:

1

target_include_directories(target_name PUBLIC include_directory_path)

Replace target_name with the name of the target you want to set the include directory for, and include_directory_path with the path to the directory containing the header files for that target. You can also use other options such as PRIVATE or INTERFACE instead of PUBLIC to control whether the include directory should be propagated to other dependencies or not.

By setting include directories per project in CMake, you can ensure that the correct header files are included for each target, making your build process more efficient and maintainable.

What is the best practice for setting include directories in cmake?

The best practice for setting include directories in CMake is to use the include_directories command. This command specifies a list of directories to be searched when a target is built for header files.

Here is an example of how to set include directories in CMake:

1
2
3
4
5
6

include_directories(${CMAKE_SOURCE_DIR}/include)

# For a specific target
target_include_directories(my_target PUBLIC
    ${CMAKE_SOURCE_DIR}/include
)

Using the include_directories command ensures that the specified directories are searched for header files when building the target. It is recommended to use this command instead of manually adding include directories to compiler flags as it keeps the CMakeLists.txt file more organized and allows for easier management of include directories.

What is the cmake function for setting include directories?

The cmake function for setting include directories is called include_directories(). This function is used to specify the directories in which the compiler should search for header files when building a target.

Here is an example of how to use the include_directories() function in a CMakeLists.txt file:

1

include_directories(path/to/include/directory)

How to link include directories in cmake?

To include directories in CMake, you can use the include_directories command in your CMakeLists.txt file. Here is an example of how to include directories:

1
2
3
4
5

# Add the directories to be included (replace "include" with the actual directory path)
include_directories(include)

# Another way to include directories using target_include_directories
# target_include_directories(your_target_name PUBLIC include)

You can also use the target_include_directories command to add include directories specifically for a target. This command takes the target name as the first argument and the include directories as subsequent arguments.

Remember to run cmake to regenerate the necessary build files after making changes to your CMakeLists.txt file.