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

In Meson, you can set compiler flags for specific targets by using the cpp method within your executable or library functions. This allows you to customize the build settings according to the needs of each target, enhancing control over your build process.

 
target1 = executable('app1', 'source1.cpp',
                    c_args: ['-DDEBUG'],
                    cpp_args: ['-Wall']
                   )

target2 = executable('app2', 'source2.cpp',
                    c_args: ['-O2'],
                    cpp_args: ['-Werror']
                   )