How to Add A Custom Build Type to Cmake?

To add a custom build type to CMake, you can use the CMAKE_BUILD_TYPE variable in your CMakeLists.txt file. First, define your custom build type by setting the value of CMAKE_BUILD_TYPE to your desired build type name. Next, you can set the compiler flags specific to your custom build type using the CMAKE_CXX_FLAGS_<BUILD_TYPE> or CMAKE_C_FLAGS_<BUILD_TYPE> variables. Additionally, you can specify any custom rules or configurations for your custom build type within your CMakeLists.txt file. Finally, when running CMake to generate the build files, make sure to specify the custom build type using the -DCMAKE_BUILD_TYPE=<YOUR_CUSTOM_BUILD_TYPE> option. This will ensure that CMake generates the build files according to your custom build type settings.

How to set up a custom build type in CMake for different configurations?

To set up a custom build type in CMake for different configurations, you can follow these steps:

1. Open your CMakeLists.txt file in your project directory.
2. Define a new build type by using the CMAKE_BUILD_TYPE variable in your CMakeLists.txt file. You can set this variable to different values to create different build configurations, such as "Debug", "Release", "MinSizeRel", "RelWithDebInfo", or a custom build type name.
3. Define custom compiler and linker options for your new build type by using the CMAKE_CXX_FLAGS and CMAKE_EXE_LINKER_FLAGS variables in your CMakeLists.txt file.

Here is an example of how you can define a custom build type named "CustomBuildType" in your CMakeLists.txt file:

1
2
3
4
5
6
7
8

# Define a custom build type
set(CMAKE_BUILD_TYPE "CustomBuildType" CACHE STRING "Choose the type of build" FORCE)

# Set custom compiler and linker options for the custom build type
if(CMAKE_BUILD_TYPE STREQUAL "CustomBuildType")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2 -Wall")
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s")
endif()

1. Use the newly defined build type in your project configuration by running CMake with the -DCMAKE_BUILD_TYPE=CustomBuildType option:

1

cmake -DCMAKE_BUILD_TYPE=CustomBuildType /path/to/source

1. Build your project with the custom build type by using the -DCMAKE_BUILD_TYPE option when running the make or cmake --build command:

1

cmake --build . --config CustomBuildType

By following these steps, you can set up a custom build type in CMake for different configurations in your project.

How to integrate a custom build type with version control systems in CMake?

To integrate a custom build type with version control systems in CMake, you can follow these steps:

1. Define a custom build type in your CMakeLists.txt file. For example, you can define a custom build type called "Custom" by adding the following code: set(CMAKE_CXX_FLAGS_CUSTOM "${CMAKE_CXX_FLAGS} -DCUSTOM_BUILD") set(CMAKE_C_FLAGS_CUSTOM "${CMAKE_C_FLAGS} -DCUSTOM_BUILD") set(CMAKE_EXE_LINKER_FLAGS_CUSTOM "${CMAKE_EXE_LINKER_FLAGS}") set(CMAKE_SHARED_LINKER_FLAGS_CUSTOM "${CMAKE_SHARED_LINKER_FLAGS}")
2. Create a separate configuration file for the custom build type, such as CustomConfig.cmake: if (NOT DEFINED CMAKE_BUILD_TYPE OR "${CMAKE_BUILD_TYPE}" STREQUAL "") set(CMAKE_BUILD_TYPE "Custom" CACHE STRING "Choose the type of build." FORCE) endif()
3. Use version control system-specific commands to manage your custom build type in your version control system. For example, if you are using Git, you can create a custom branch for your custom build type: git checkout -b custom_build
4. Commit your changes to the version control system: git add . git commit -m "Added custom build type" git push origin custom_build
5. When setting up a new build, clone the repository and switch to the custom build type branch: git clone git checkout custom_build
6. Configure CMake to use the custom build type by specifying the configuration file: cmake -DCMAKE_BUILD_TYPE=Custom -C CustomConfig.cmake .
7. Build your project using CMake and the custom build type: cmake --build .

By following these steps, you can integrate a custom build type with version control systems in CMake and manage your custom build configurations effectively.

How to specify compiler options for a custom build type in CMake?

To specify compiler options for a custom build type in CMake, you can use the following steps:

1. Define your custom build type in the CMakeLists.txt file using the set(CMAKE_BUILD_TYPE ) command. For example, you can define a custom build type named "MyCustomBuildType" like this:

1

set(CMAKE_BUILD_TYPE MyCustomBuildType)

1. Create a new block of CMake code to set the compiler options for your custom build type. For example, if you want to set specific optimization flags for your custom build type, you can do so like this:

1
2
3
4

if(CMAKE_BUILD_TYPE STREQUAL MyCustomBuildType)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
endif()

1. Customize the compiler options in the new block of code according to your specific requirements for the custom build type.
2. Make sure to run CMake to generate the appropriate build files for your project with the custom build type and compiler options in place.

By following these steps, you can specify compiler options for a custom build type in CMake.