[Tinycc-devel] Why missing #includes don't cause warning/fail?

[Wendell P]

Using tcc 0.9.26 on Windows 7 64-bit.
In the fib.c example that comes with tcc, atoi() is used but
there is no #include <stdlib.h>, yet tcc compiles it OK. It 
even compiles without problem if I remove #include <stdio.h>.

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