* RFA: #define _GNU_SOURCE to get strsignal prototoype
@ 2004-10-07 16:08 Jim Blandy
2004-10-07 16:11 ` Kevin Buettner
0 siblings, 1 reply; 3+ messages in thread
From: Jim Blandy @ 2004-10-07 16:08 UTC (permalink / raw)
To: rda
This removes some compilation warnings on older Red Hat systems.
#defining _GNU_SOURCE is the documented way to get these declarations
from GNU C Library header files. From "(libc) Feature Test Macros":
You should define these macros by using `#define' preprocessor
directives at the top of your source code files. These directives
_must_ come before any `#include' of a system header file. It is best
to make them the very first thing in the file, preceded only by
comments. You could also use the `-D' option to GCC, but it's better
if you make the source files indicate their own meaning in a
self-contained way.
...
- Macro: _GNU_SOURCE
If you define this macro, everything is included: ISO C89,
ISO C99, POSIX.1, POSIX.2, BSD, SVID, X/Open, LFS, and GNU
extensions. In the cases where POSIX.1 conflicts with BSD, the
POSIX definitions take precedence.
2004-09-24 Jim Blandy <jimb@redhat.com>
* samples/async.c: #define _GNU_SOURCE before #including any
files, to get prototypes for GNU-specific functions like
strsignal.
Index: rda/samples/async.c
===================================================================
RCS file: /cvs/src/src/rda/samples/async.c,v
retrieving revision 1.1
diff -c -p -r1.1 async.c
*** rda/samples/async.c 28 Aug 2002 01:22:28 -0000 1.1
--- rda/samples/async.c 7 Oct 2004 16:03:08 -0000
***************
*** 22,27 ****
--- 22,29 ----
Alternative licenses for RDA may be arranged by contacting Red Hat,
Inc. */
+ #define _GNU_SOURCE /* enables strsignal prototype in <string.h> */
+
#include "config.h"
#include <stdio.h>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: RFA: #define _GNU_SOURCE to get strsignal prototoype
2004-10-07 16:08 RFA: #define _GNU_SOURCE to get strsignal prototoype Jim Blandy
@ 2004-10-07 16:11 ` Kevin Buettner
2004-10-07 19:11 ` Jim Blandy
0 siblings, 1 reply; 3+ messages in thread
From: Kevin Buettner @ 2004-10-07 16:11 UTC (permalink / raw)
To: Jim Blandy; +Cc: rda
On 07 Oct 2004 11:08:01 -0500
Jim Blandy <jimb@redhat.com> wrote:
> This removes some compilation warnings on older Red Hat systems.
> #defining _GNU_SOURCE is the documented way to get these declarations
> from GNU C Library header files. From "(libc) Feature Test Macros":
>
> You should define these macros by using `#define' preprocessor
> directives at the top of your source code files. These directives
> _must_ come before any `#include' of a system header file. It is best
> to make them the very first thing in the file, preceded only by
> comments. You could also use the `-D' option to GCC, but it's better
> if you make the source files indicate their own meaning in a
> self-contained way.
>
> ...
>
> - Macro: _GNU_SOURCE
> If you define this macro, everything is included: ISO C89,
> ISO C99, POSIX.1, POSIX.2, BSD, SVID, X/Open, LFS, and GNU
> extensions. In the cases where POSIX.1 conflicts with BSD, the
> POSIX definitions take precedence.
>
> 2004-09-24 Jim Blandy <jimb@redhat.com>
>
> * samples/async.c: #define _GNU_SOURCE before #including any
> files, to get prototypes for GNU-specific functions like
> strsignal.
Okay.
Kevin
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: RFA: #define _GNU_SOURCE to get strsignal prototoype
2004-10-07 16:11 ` Kevin Buettner
@ 2004-10-07 19:11 ` Jim Blandy
0 siblings, 0 replies; 3+ messages in thread
From: Jim Blandy @ 2004-10-07 19:11 UTC (permalink / raw)
To: Kevin Buettner; +Cc: rda
Kevin Buettner <kevinb@redhat.com> writes:
> On 07 Oct 2004 11:08:01 -0500
> Jim Blandy <jimb@redhat.com> wrote:
>
> > This removes some compilation warnings on older Red Hat systems.
> > #defining _GNU_SOURCE is the documented way to get these declarations
> > from GNU C Library header files. From "(libc) Feature Test Macros":
> >
> > You should define these macros by using `#define' preprocessor
> > directives at the top of your source code files. These directives
> > _must_ come before any `#include' of a system header file. It is best
> > to make them the very first thing in the file, preceded only by
> > comments. You could also use the `-D' option to GCC, but it's better
> > if you make the source files indicate their own meaning in a
> > self-contained way.
> >
> > ...
> >
> > - Macro: _GNU_SOURCE
> > If you define this macro, everything is included: ISO C89,
> > ISO C99, POSIX.1, POSIX.2, BSD, SVID, X/Open, LFS, and GNU
> > extensions. In the cases where POSIX.1 conflicts with BSD, the
> > POSIX definitions take precedence.
> >
> > 2004-09-24 Jim Blandy <jimb@redhat.com>
> >
> > * samples/async.c: #define _GNU_SOURCE before #including any
> > files, to get prototypes for GNU-specific functions like
> > strsignal.
>
> Okay.
Committed, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2004-10-07 16:11 ` Kevin Buettner
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