diff options
Diffstat (limited to 'includes/cdefs.h')
| -rw-r--r-- | includes/cdefs.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/includes/cdefs.h b/includes/cdefs.h index 2f61ed7..eab1c4b 100644 --- a/includes/cdefs.h +++ b/includes/cdefs.h @@ -3,8 +3,8 @@ Standard C definitions... */ /* - * Copyright (c) 2011 by Internet Systems Consortium, Inc. ("ISC") - * Copyright (c) 2004,2009 by Internet Systems Consortium, Inc. ("ISC") + * Copyright (c) 2012 by Internet Systems Consortium, Inc. ("ISC") + * Copyright (c) 2004,2009,2011 by Internet Systems Consortium, Inc. ("ISC") * Copyright (c) 1996-2003 by Internet Software Consortium * Copyright (c) 1995 RadioMail Corporation. All rights reserved. * @@ -46,15 +46,25 @@ * the warning by the use of void. In conjunction with the use of -Werror * these warnings prohibit the compilation of the package. This macro * allows us to assign the return value to a variable and then ignore it. + * + * __attribute__((unused)) is added for avoiding another warning about set, + * but unused variable. This is produced by unused-but-set-variable switch + * that is enabled by default in gcc 4.6. */ #if !defined(__GNUC__) || (__GNUC__ < 4) #define IGNORE_RET(x) (void) x #else #define IGNORE_RET(x) \ do { \ - int ignore_return; \ - ignore_return = x; \ + int __attribute__((unused)) ignore_return ;\ + ignore_return = x; \ } while (0) #endif +/* This macro is defined to avoid unused-but-set-variable warning + * that is enabled in gcc 4.6 + */ + +#define IGNORE_UNUSED(x) { x = x; } + #endif /* __ISC_DHCP_CDEFS_H__ */ |