[PATH] XQuartz: Drop calls to alloca

[Peter Harris]

Daniel Stone wrote:
> Meh.
> 
> Anyone have any objection to declaring xalloc/xfree dead -- at least in
> the server -- and moving to plain old malloc/calloc/strdup/.../free?

On Windows, malloc in one shared library and free in another is invalid.
Being able to call back into the app via xalloc/xfree avoids this problem.

Also, we don't have LD_LIBRARY_PRELOAD, so having everything go through
the xalloc/xfree wrappers makes using a debug allocator much easier.
("Detours" exists, so losing xalloc/xfree wouldn't be the end of the
world, but Detours is more of a pain to use)

Peter Harris
-- 
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