Description of problem:

Hello there,

I just tried to compile package xpdf-2.01-8, from Redhat 9.0,
with compiler flag -Wall.

The compiler said

t1env.c:812: warning: operation on `i' may be undefined
t1env.c:849: warning: operation on `i' may be undefined
t1env.c:886: warning: operation on `i' may be undefined
t1env.c:1014: warning: operation on `i' may be undefined

The source code is

        T1_PFAB_ptr[i+1]=T1_PFAB_ptr[i--];

Better source code is

        T1_PFAB_ptr[i+1]=T1_PFAB_ptr[i];
		--i;



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


How reproducible:


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Expected results:


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