buildd log scanner tag E-pointer-trouble-at-implicit

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description

The build log contains the term 
warning: ... makes pointer from integer without a cast
or a 
warning: cast to pointer from integer of different size
for the same line as a 
warning: implicit declaration of function

There is a extremely high likelihood that this causes misheaviour, at least on 64 bit architectures.

Implicit declaration means a function is used without being declared, which means C assumes all it's arguments are 32 bit integers and the return value is a 32 bit integer. If the return value is a pointer that means it is cast to an integer and back, discarding all the high bits, corrupting pointers.

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