Building a x86 application with CMake, Ninja and Clang on x64 Windows

To build a 32-bit (x86) application using CMake, Ninja, and Clang on a 64-bit (x64) Windows system, you can follow these steps:

1. Install Required Tools:

   • Install CMake: Download and install CMake for Windows from the official website.
   • Install LLVM/Clang: Download and install the LLVM/Clang package for Windows from the official website.

2. Configure the Build:
   Open a command prompt and navigate to your project directory. Create a build directory for out-of-source build:

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   mkdir build
   
   cd build
   
   

3. Generate CMake Files:
   Run CMake to generate build files. You'll need to specify the generator as Ninja, and you can set the target architecture to 32-bit using the -A flag:

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   cmake -G "Ninja" -DCMAKE_C_COMPILER="C:/path/to/clang.exe" -DCMAKE_CXX_COMPILER="C:/path/to/clang++.exe" -DCMAKE_SYSTEM_PROCESSOR=x86 -DCMAKE_GENERATOR_PLATFORM=x86 ..
   
   

   Replace "C:/path/to/clang.exe" and "C:/path/to/clang++.exe" with the actual paths to your Clang executables.

4. Build the Project:
   Now you can build the project using Ninja:

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   ninja
   
   

This will generate a 32-bit executable using Clang as the compiler. Make sure that your source code and CMake configuration are compatible with a 32-bit target.

Note that building 32-bit applications on a 64-bit system might require additional configurations and libraries if you encounter any issues related to cross-compilation or library compatibility.

Remember to adjust paths and settings according to your specific setup and project requirements.