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Re: Config options d_strtod_l & d_strtold_l

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H.Merijn Brand
April 25, 2019 08:50
Re: Config options d_strtod_l & d_strtold_l
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On Thu, 25 Apr 2019 14:28:01 +1000, sisyphus <>

> Hi,
> Previously unaware of these options, I learned of their existence
> while reading
> But I can't find any C code in the perl source that actually does
> things differently depending upon whether these symbols are defined
> or not.
> I mean, I can see that defining them leads to HAS_STROD_L &

Missing a T there :)

> HAS_STRTOLD_L being defined, but that's it.

It was added back in in April 2018 because Karl asked for it.

It is a kind of chicken-egg problem: one cannot use feature until they
are there. So we (the Configure maint team) add features on request,
but we do not control its use.

> AFAICS, there's in no place in the perl source that makes purposeful
> use of these symbols; hence whether they are defined or not really
> makes no difference at all..

That is a correct conclusion, but now that the probes are in, you *can*
use them.

> Have I missed something ?

I don't think so, except maybe the way this process works, but that is
not important

> Rob

H.Merijn Brand   Perl Monger
using perl5.00307 .. 5.29   porting perl5 on HP-UX, AIX, and openSUSE

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