Re: Query of type of memcpy (and sys_errlist) on Cygwin

[Tatsuro MATSUOKA <tmacchant2 at yahoo dot co dot jp>]

> From: Marco Atzeri
> To: cygwin> Cc: 
> Date: 2016/4/10, Sun 16:12
> Subject: Re: Query of type of memcpy (and sys_errlist) on Cygwin
> 
> Hi Tatsuro,
> May be was better to not reply to a different thread ?
> 

I am pending the other thread and I want to discuss here.
> On 10/04/2016 05:14, Tatsuro MATSUOKA wrote:
>>  Hello
>>  The topic was discussed on gnuplot mailing list.
>> 
> http://gnuplot.10905.n7.nabble.com/stdfn-h-error-conflicting-types-for-memcopy-and-sys-errlist-on-Cygwin-build-td20061.html
>>  Frorm discussion there (the topic is now pending.) ,
>>  I decided ask here.
>>  In compling gnuplot I have met errors:
>>  ../../gnuplot/src/stdfn.h:67:8: error: conflicting types for 
> 'memcpy'
>>    char * memcpy __PROTO((char *, char *, size_t));
>> 
>>  ../../gnuplot/src/stdfn.h:171:14: error: conflicting types for 
> 'sys_errlist'
>>    extern char *sys_errlist[];
>> 
>>  Ethan A Merritt suggested in the gnuplot mailing list that:
>>  Anyhow, the correct typing for memcpy is:
>>      void *memcpy(void *,  const void *,  size_t);
> 
> correct, when in doubt this is a good place to look for:
> http://pubs.opengroup.org/onlinepubs/9699919799/functions/memcpy.html
> 
>>  I have complied many times this source but I have not met such kinds of 
> errors.
>>  (Today I have cleanly installed Cygwin because I have cleanly install 
> windows 10)
> 
>>  Any suggestions?
>>  Tatsuro
>> 
> 
> cygwin/newlib headers are under re-shuffle to simplify the guarding 
> clauses in the main headers.
> It is possible that gnuplot is misleaded and don't correctly detect 
> memcopy as it should.
> 
> Have you tried to use latest test release ?
> https://www.cygwin.com/ml/cygwin-announce/2016-04/msg00012.html
> 

OK I will try and report results here.
Tatsuro


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