🚀 go-pugleaf

Can someone tell me why this program compile o.k.

	#include <stdio.h>
	#define C 'f'
	main()
	{
	  printf("Hello world\n");
	}

and this program when compile gives me illegal character in conio.h

	#include <stdio.h>
	#include <conio.h>
	#define C 'f'
	main()
	{
	  printf("Hello world\n");
	}

The two program works fine in Turbo C 1.0
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