[PATCH libX11] Use flexible array member instead of fake size.

[Keith Packard]

Michal Srb <msrb at suse.com> writes:

> The _XimCacheStruct structure is followed in memory by two strings containing
> fname and encoding. The memory was accessed using the last member of the
> structure `char fname[1]`. That is a lie, prohibits us from using sizeof and
> confuses checkers. Lets declare it properly as a flexible array, so compilers
> don't complain about writing past that array. As bonus we can replace the
> XOffsetOf with regular sizeof.

Thanks; this form is how we used to need to do this as C compilers
didn't support a flexible array at the end of a struct...

Reviewed-by: Keith Packard <keithp at keithp.com>

-- 
-keith
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