Description of problem:
I just tried to compile package xsane-0.91-1 from Fedora.

The compiler said

xsane-preview.c:6331: warning: operation on `image_data_rawp' may be
undefined

The source code is

	level = ((*image_data_rawp++) 
				+ (*image_data_rawp++) 
				+ (*image_data_rawp++)) / 3;

This is undefined C code. The following code is legal, and
perhaps what was intended.

	level = ((image_data_rawp[ 0]) 
				+ (image_data_rawp[ 1]) 
				+ (image_data_rawp[ 2])) / 3;
	image_data_rawp += 3;



Version-Release number of selected component (if applicable):
xsane-0.91-1 

How reproducible:


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Additional info: