From: cyg Simple <cygsimple@gmail.com>
To: cygwin@cygwin.com
Subject: Re: issetugid - not declared when _XOPEN_SOURCE is also defined
Date: Wed, 09 Nov 2016 19:41:00 -0000 [thread overview]
Message-ID: <9bb90c12-b50b-faf9-b309-f916dd84bebe@gmail.com> (raw)
In-Reply-To: <d61199c7-85d2-039d-58cb-29fb8d6ff369@gmail.com>
On 11/9/2016 1:13 PM, cyg Simple wrote:
> The following program demonstrates the issue. Should issetugid be
> declared with this scenario?
>
> /*****************************************************/
> #define _XOPEN_SOURCE 1 /* Causes declare warning */
> #define __BSD_VISIBLE 1
> #include <unistd.h>
>
> int main(int argc, char ** argv) {
> int result;
> result = issetugid();
> }
> /****************************************************/
>
Because when _XOPEN_SOURCE is 1 _DEFAULT_SOURCE doesn't get set which
then #undef __BSD_VISIBLE and and sets it to 0. See
/usr/include/sys/features.h.
If I #define _DEFAULT_SOURCE 1 before the #include then the above code
works. However, should it?
--
cyg Simple
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next prev parent reply other threads:[~2016-11-09 19:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-09 18:13 cyg Simple
2016-11-09 19:41 ` cyg Simple [this message]
2016-11-10 9:10 ` Corinna Vinschen
2016-11-11 7:31 ` cyg Simple
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