TFT_eSPI: Unlinked Touch.h Touch.cpp extension:

#define TOUCH_CS is required for Touch to compile. But if we just configure the User_Setup_Select.h file with the right touch screen (ILI9488 in my case) #define TOUCH_CS does not appear anywhere and the compilation fails if we call the touch functions.
In the User_Setup_Select.h file, it is imperative to uncomment #include <User_Setup.h> in addition to #include <User_Setups/Setup20_ILI9488.h> for the compilation to succeed.

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