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Date:	Fri, 11 Jan 2013 23:00:26 +0100
From:	marco atzeri <marco DOT atzeri AT gmail DOT com>
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To:	cygwin AT cygwin DOT com
Subject:	Re: XOPEN_SOURCE and strings.h
References:	<DB6397CD-79A6-428E-9B08-15365DC7BCF4 AT Denis-Excoffier DOT org>
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On 1/11/2013 10:47 PM, Denis Excoffier wrote:
> Hello,
>
> In order to compile some packages (including slang-2.2.4 and ccrypt-1.9)
> with GCC-4.7.2, i had to patch /usr/include/string.h iaw the following:
>
>
> diff -uNr x-o/usr/include/string.h x-p/usr/include/string.h
> --- x-o/usr/include/string.h	2012-11-23 14:40:09.000000000 +0100
> +++ x-p/usr/include/string.h	2013-01-11 22:29:39.000000000 +0100
> @@ -64,13 +64,13 @@
>   char	*_EXFUN(strcasestr,(const char *, const char *));
>   char 	*_EXFUN(strchrnul,(const char *, int));
>   #endif
> -#if !defined(__STRICT_ANSI__) || (_XOPEN_SOURCE >= 500)
> +#if !defined(__STRICT_ANSI__) || ((_XOPEN_SOURCE - 0) >= 500)
>   char 	*_EXFUN(strdup,(const char *));
>   #endif
>   #ifndef __STRICT_ANSI__
>   char 	*_EXFUN(_strdup_r,(struct _reent *, const char *));
>   #endif
> -#if !defined(__STRICT_ANSI__) || (_XOPEN_SOURCE >= 700)
> +#if !defined(__STRICT_ANSI__) || ((_XOPEN_SOURCE - 0) >= 700)
>   char 	*_EXFUN(strndup,(const char *, size_t));
>   #endif
>   #ifndef __STRICT_ANSI__
>
>
>
> See also /usr/include/sys/features.h.
>
> Otherwise i obtain the message:
>
> /usr/include/string.h:67:49: error: operator '>=' has no left operand
> /usr/include/string.h:73:49: error: operator '>=' has no left operand
>
> Hope this helps,
>
> Regards,
>
> Denis Excoffier.
>
>

are you sure about that file ?
_XOPEN_SOURCE is not present on string.h


$ cygcheck -f /usr/include/string.h
cygwin-1.7.17-1

$ grep XOPEN /usr/include/string.h


Regards
Marco



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