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| author | Jim Meyering <meyering@redhat.com> | 2010-07-05 17:16:23 +0200 |
|---|---|---|
| committer | Jim Meyering <meyering@redhat.com> | 2010-07-05 17:39:46 +0200 |
| commit | 61aae73f5427c987b20604fbec5772e02edc0f74 (patch) | |
| tree | a68005fba98f2e345b93c5b13dd9b11df12ba541 /src/system.h | |
| parent | 09fcf494a10c4b1ad2b037d093f571e7462e08c4 (diff) | |
| download | coreutils-61aae73f5427c987b20604fbec5772e02edc0f74.tar.xz | |
system.h: define ATTRIBUTE_WARN_UNUSED_RESULT
* src/system.h (ATTRIBUTE_WARN_UNUSED_RESULT): Define.
Diffstat (limited to 'src/system.h')
| -rw-r--r-- | src/system.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/system.h b/src/system.h index 859b663b9..9e1468172 100644 --- a/src/system.h +++ b/src/system.h @@ -483,6 +483,14 @@ enum # define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) #endif +/* The warn_unused_result attribute appeared first in gcc-3.4.0 */ +#undef ATTRIBUTE_WARN_UNUSED_RESULT +#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4) +# define ATTRIBUTE_WARN_UNUSED_RESULT /* empty */ +#else +# define ATTRIBUTE_WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__)) +#endif + #if defined strdupa # define ASSIGN_STRDUPA(DEST, S) \ do { DEST = strdupa (S); } while (0) |