Add realpath Prototype

[Joel Sherrill]

On 11/20/2013 8:26 AM, Corinna Vinschen wrote:
> On Nov 20 07:38, Joel Sherrill wrote:
>> On 11/20/2013 3:46 AM, Corinna Vinschen wrote:
>>> On Nov 19 12:42, Corinna Vinschen wrote:
>>>> On Nov 18 13:32, Joel Sherrill wrote:
>>>>> On 11/18/2013 12:33 PM, Yaakov (Cygwin/X) wrote:
>>>>>> On 2013-11-18 12:24, Joel Sherrill wrote:
>>>>>>> I added the realpath() prototype more or less where
>>>>>>> glibc has it in stdlib.h.
>>>>>>> 
>>>>>>> Also added restrict to Linux implementation.
>>>>>>> 
>>>>>>> Does this look ok to commit?
>>>>>> 
>>>>>> Your patch includes a duplicate declaration of qsort().
>>>>> 
>>>>> Fixed. Stupid cut and paste.
>>>>> 
>>>>>> Also, Cygwin provides its own prototype of realpath in
>>>>>> its own headers, so either that needs to be removed, or
>>>>>> this prototype placed in a !__CYGWIN__ block; I'll let
>>>>>> Corinna decide which she prefers.
>>>>> 
>>>>> Since this wasn't in newlib, I didn't know about it. I have
>>>>>  been trusting grep. :)
>>>>> 
>>>>> Whatever Corinna wants to do, I am ok with.
>>>> 
>>>> Just apply your patch.  I'll remove the Cygwin definition 
>>>> afterwards.
>>> 
>>> FYI, I moved the readline declaration into the following
>>> `#ifndef __STRICT_ANSI__' block, analogue to the old
>>> Cygwin-only declaration.
>> . Thanks. The guards are tricky. glibc has
>> 
>> #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
>> 
>> http://pubs.opengroup.org/onlinepubs/9699919799/functions/realpath.html
>>
>> 
marks it as XSI with no explicit macros that I am spotting.
>> 
>> Is that close enough?
> 
> I don't understand the question.  BSD and XOPEN don't correspond
> to strict ANSI.

I was just pointing out that glibc has BSD and XOPEN as guards.
Is that equivalent?

> 
> Corinna
> 



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