diff options
| -rw-r--r-- | include/features.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/features.h b/include/features.h index 7d2c7a4f87..07c73b3e55 100644 --- a/include/features.h +++ b/include/features.h @@ -57,7 +57,8 @@ __STRICT_ANSI__). _FORTIFY_SOURCE Add security hardening to many library functions. - Set to 1 or 2; 2 performs stricter checks than 1. + Set to 1, 2 or 3; 3 performs stricter checks than 2, which + performs stricter checks than 1. _REENTRANT, _THREAD_SAFE Obsolete; equivalent to _POSIX_C_SOURCE=199506L. |