How do I set compiler flags per target in CMake for C++?

In CMake, you can set compiler flags per target to customize the build process for each of your executable or library targets. This is particularly useful when you need specific compiler options for different targets within the same project.

Below is an example demonstrating how to set compiler flags for specific targets in a CMake project:

cmake_minimum_required(VERSION 3.10) project(MyProject) # Create the first target add_executable(TargetA src/main_a.cpp) # Set compiler flags for TargetA target_compile_options(TargetA PRIVATE -Wall -Wextra) # Create the second target add_executable(TargetB src/main_b.cpp) # Set different compiler flags for TargetB target_compile_options(TargetB PRIVATE -O2)

In this example, TargetA uses the flags -Wall and -Wextra, which enable additional warnings, while TargetB uses the flag -O2 for optimization. This flexibility allows developers to tailor settings to their needs.


CMake compiler flags targets C++ build process custom settings

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