--- "D. Hugh Redelmeier" <[EMAIL PROTECTED]> wrote:
> ./configure --enable-debug
>
> This helped: gdb then did know the line numbers for crashes. Anybody
> know how to display, for example, sz or szId when at a breakpoint in
> the above code? "print sz" failed because gdb claimed no to know the
> variable (but "print i" worked). I wonder if the -O2 flag caused
> variable info to be washed away.
My guess is that -O2 is good enough but sz has not been initialized so
the compiler doesn't generate debug info for it and gdb doesn't get to
see it. I may be wrong.
I vaguely recall coming across some mention of a difference between NULL
and NUL; thanks to your email I think I have finally managed to get a
grip on the answer.
Rico.
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