[PATCH v2] Move libc_freeres_ptrs and libc_subfreeres to hidden/weak functions

[Andreas Schwab]

On Dez 13 2022, Adhemerval Zanella via Libc-alpha wrote:

> +#define set_freeres_declare_name(__name)			\
> +  __name ## _aux
> +#define set_freeres_declare_ptr(__name, __ptr)			\
> +  void set_freeres_declare_name (__name) (void)			\
> +  {								\
> +    if (__ptr != NULL)						\
> +      free (__ptr);						\

You can call free with NULL just fine.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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