Move new totalorder from libm to libc

[Andreas Schwab]

On Dez 16 2019, Florian Weimer wrote:

> * Gabriel F. T. Gomes:
>
>> On Sat, 14 Dec 2019, Florian Weimer wrote:
>>
>>>Should we define the new totalorder in libc, so that it is harder to
>>>get the wrong version at run time due to underlinking?
>>
>> I didn't understand how underlinking could cause a wrong version to be
>> selected.  Isn't totalorder only provided by libm?  Where would a user
>> program get the old version from?  I can only imagine it getting undefined
>> references during link time.
>
> If you build a shared object with -shared, you won't get an undefined
> symbol error (with typical toolchains):

What makes totalorder special in this regard?

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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