X-Recipient:	archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status:	No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,SPF_PASS
X-Spam-Check-By:	sourceware.org
Message-ID:	<49CB0834.3010904@gmail.com>
Date:	Thu, 26 Mar 2009 04:44:36 +0000
From:	Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com>
User-Agent:	Thunderbird 2.0.0.17 (Windows/20080914)
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	Re: [1.7] <signal.h> does not compile with -ansi
References:	<49CAFB8B DOT 7090909 AT users DOT sourceforge DOT net>
In-Reply-To:	<49CAFB8B.7090909@users.sourceforge.net>
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com

Yaakov (Cygwin/X) wrote:

> <sys/signal.h> #includes <sys/types.h> only #ifdef _POSIX_THREADS, which
> is not defined if the -ansi compiler flag is passed.  STC:
> 
> $ echo '#include <signal.h>' > test-signal.c
> 
> $ gcc-4 -ansi -c test-signal.c
> In file included from /usr/include/sys/signal.h:107,
>                  from /usr/include/signal.h:5,
>                  from test.c:1:
> /usr/include/cygwin/signal.h:74: error: expected
> specifier-qualifier-list before 'pthread_attr_t'
> /usr/include/cygwin/signal.h:80: error: expected
> specifier-qualifier-list before '__uint32_t'
> /usr/include/cygwin/signal.h:96: error: expected
> specifier-qualifier-list before 'pid_t'
> /usr/include/cygwin/signal.h:270: error: expected ')' before 'int'
> In file included from /usr/include/signal.h:5,
>                  from test.c:1:
> /usr/include/sys/signal.h:152: error: expected ')' before 'int'

  Posix realtime signals are an extension to the standard C90 spec.  The
"-ansi" documentation mentions this:

     The macro `__STRICT_ANSI__' is predefined when the `-ansi' option
     is used.  Some header files may notice this macro and refrain from
     declaring certain functions or defining certain macros that the
     ISO standard doesn't call for; this is to avoid interfering with
     any programs that might use these names for other things.

  Should signal.h perhaps wrap the stuff tagged 'CX' and 'RTS' at
http://www.opengroup.org/onlinepubs/009695399/basedefs/signal.h.html
in #ifndef __STICT_ANSI__ ?

    cheers,
      DaveK

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -