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Add __unused to the list of __dead, __dead2, __pure, __pure2 etc.

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gcc-2.7 has __attribute__((unused)) as a postfix operator on function
arguments to prevent -Wunused from complaining about them.  gcc < 2.7
doesn't have anything like this (and doesn't care about it either).

eg:
int foo(bar, baz)
  int bar __unused;	/* needed because of function pointer typing */
  char *baz __unused;
{
  return (1);
}
This commit is contained in:
Peter Wemm 1996-08-18 16:14:03 +00:00
parent ab021a62b1
commit 979ef59bf8
1 changed files with 12 additions and 2 deletions
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14
sys/sys/cdefs.h
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@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)cdefs.h 8.8 (Berkeley) 1/9/95
* $Id: cdefs.h,v 1.9 1996/03/11 02:16:19 hsu Exp $
* $Id: cdefs.h,v 1.10 1996/04/13 14:23:29 bde Exp $
*/
#ifndef _SYS_CDEFS_H_
@ -112,6 +112,7 @@
#define __dead2
#define __pure
#define __pure2
#define __unused
#define __attribute__(x)
#endif
#if __GNUC__ == 2 && __GNUC_MINOR__ < 5
@ -119,12 +120,21 @@
#define __dead2
#define __pure __const
#define __pure2
#define __unused
#endif
#if __GNUC__ == 2 && __GNUC_MINOR__ > 5 || __GNUC__ >= 3
#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
#define __dead
#define __dead2 __attribute__((__noreturn__))
#define __pure
#define __pure2 __attribute__((__const__))
#define __unused
#endif
#if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 || __GNUC__ >= 3
#define __dead
#define __dead2 __attribute__((__noreturn__))
#define __pure
#define __pure2 __attribute__((__const__))
#define __unused __attribute__((__unused__))
#endif
#ifdef __GNUC__