Re: [Mingw-users] _XOPEN_SOURCE

[Keith M. <kei...@us...>]

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On 23/04/17 18:27, Bryan Henderson wrote:
>> This reference [3] indicates that _XOPEN_SOURCE should contain a value.
>> So prior to SUSv3 it appears to be up in the air as to how the constant
>> should be used; with versus without a value.
> 
> This Linux Programming Reference is consistent with the others.
> 
>   #define _XOPEN_SOURCE
> 
> does define the macro with a value - null string.

It does no such thing ... null string is explicitly "".  You are defining 
it to represent nothing at all, and that is a violation of POSIX, as of
POSIX.1-1996 (SUSv2).  Your usage is long obsolete ... time you woke up 
to life in the 21st century, and updated it.

- -- 
Regards,
Keith.

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