[PATCH v4] malloc: Improve malloc initialization

[Florian Weimer]

* Wilco Dijkstra:

> v4: Remove remaining uses of __malloc_initialized.
>
> Move malloc initialization to __libc_early_init.  Use a hidden __ptmalloc_init
> for initialization and a weak call to avoid pulling in the system malloc in a
> static binary.  All previous initialization checks can now be removed.
>
> Passes regress, OK for commit?

This version looks okay to me.

Reviewed-by: Florian Weimer <fweimer@redhat.com>

Thanks,
Florian