Must choose one of nptl, linuxthreads

[Andreas Schwab]

Roland McGrath <roland@redhat.com> writes:

>> It seems that --enable-add-ons can no longer be used without arguments,
>> or what is the matter?
>
> That is true, you will try to get both nptl and linuxthreads.
> This has always been the case for as long as both directories have been there.

How about making it possible to explicitly disable an addon?  Like
`--enable-add-ons=no-nptl'.

Andreas.

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Andreas Schwab, SuSE Labs, schwab@suse.de
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