Here are step-by-step guides for installing LLVM, CMake, and Ninja on MacOS using Homebrew:
Installing LLVM:
- Open a terminal on your MacOS system and run the following command to update Homebrew:
brew update
- Use the
brew search
command to search for LLVM in the Homebrew package repository:brew search llvm
- This will show a list of LLVM packages available in the Homebrew package repository. To install LLVM, run the
brew install
command and specify the name of the LLVM package that you want to install. For example, to install the latest version of LLVM, you can use the following command:brew install llvm
- This will download and install LLVM on your MacOS system. You can verify the installation by running the
llvm-config
command in the terminal:llvm-config --version
Installing CMake:
- Open a terminal on your MacOS system and run the following command to update Homebrew:
brew update
- Use the
brew search
command to search for CMake in the Homebrew package repository:brew search cmake
- This will show a list of CMake packages available in the Homebrew package repository. To install CMake, run the
brew install
command and specify the name of the CMake package that you want to install. For example, to install the latest version of CMake, you can use the following command:brew install cmake
- This will download and install CMake on your MacOS system. You can verify the installation by running the
cmake
command in the terminal:cmake --version
Installing Ninja:
- Open a terminal on your MacOS system and run the following command to update Homebrew:
brew update
- Use the
brew search
command to search for Ninja in the Homebrew package repository:brew search ninja
- This will show a list of Ninja packages available in the Homebrew package repository. To install Ninja, run the
brew install
command and specify the name of the Ninja package that you want to install. For example, to install the latest version of Ninja, you can use the following command:brew install ninja
- This will download and install Ninja on your MacOS system. You can verify the installation by running the
ninja
command in the terminal:ninja --version
That’s it! You have successfully installed LLVM, CMake, and Ninja on your MacOS system using Homebrew. You can now use these tools for C++ development on your MacOS system
Here is an example CMakeLists.txt
file for CMake, and an accompanying build.ninja
file for Ninja:
CMakeLists.txt:
cmake_minimum_required(VERSION 3.10)
project(my_project VERSION 1.0)
# Specify the C++ language standard
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED True)
# Specify the source files for the project
set(SOURCES main.cpp foo.cpp bar.cpp )
# Add an executable target for the project
add_executable(my_project ${SOURCES})
# Install the executable to the bin directory
install(TARGETS my_project DESTINATION bin)
build.ninja:
# CMake configuration
cmake_minimum_required(VERSION 3.10)
project(my_project VERSION 1.0)
# Ninja build rules
rule build_my_project command = clang++ -o $out $in description = Building $out build my_project: build_my_project main.cpp foo.cpp bar.cpp
This CMakeLists.txt
file specifies the minimum required CMake version, the name and version of the project, the C++ language standard, and the source files for the project. It also adds an executable target for the project and specifies that the executable should be installed to the bin
directory.
The build.ninja
file specifies a build rule for the project that uses the clang++
compiler to build the my_project
executable from the specified source files.
You can use these files to build and install your C++ project using CMake and Ninja. For example, you can run the following commands to build the project using CMake and Ninja:
# Create a build directory
mkdir build
# Generate the build files using CMake
cd build
cmake ..
# Build the project using Ninja
ninja
# Install the project
ninja install
This will build the my_project
executable and install it to the bin
directory. You can run the executable.
Thanks to ChatGPT from OpenAI.com for providing this tutorial. It may work, it may not.