[Misc] Fix warning in C99 ExampleBase project and mention Mac legacy … #589

Job	Run time
build_windows (Visual Studio 17 2022, x64, Shared, Release)	5m 41s
build_windows (Visual Studio 17 2022, x64, Shared, Debug)	5m 15s
build_windows (Visual Studio 17 2022, x64, Static, Release)	5m 32s
build_windows (Visual Studio 17 2022, x64, Static, Debug)	5m 28s
build_windows (Visual Studio 17 2022, Win32, Shared, Release)	4m 41s
build_windows (Visual Studio 17 2022, Win32, Shared, Debug)	5m 37s
build_windows (Visual Studio 17 2022, Win32, Static, Release)	5m 36s
build_windows (Visual Studio 17 2022, Win32, Static, Debug)	4m 34s
build_windows (Visual Studio 16 2019, x64, Shared, Release)	5m 13s
build_windows (Visual Studio 16 2019, x64, Shared, Debug)	5m 16s
build_windows (Visual Studio 16 2019, x64, Static, Release)	5m 42s
build_windows (Visual Studio 16 2019, x64, Static, Debug)	4m 46s
build_windows (Visual Studio 16 2019, Win32, Shared, Release)	4m 24s
build_windows (Visual Studio 16 2019, Win32, Shared, Debug)	4m 6s
build_windows (Visual Studio 16 2019, Win32, Static, Release)	5m 0s
build_windows (Visual Studio 16 2019, Win32, Static, Debug)	4m 41s
	1h 21m 32s

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