diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/features.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/include/features.h b/include/features.h index bb8061073e..774afdd2fe 100644 --- a/include/features.h +++ b/include/features.h @@ -224,8 +224,9 @@ # undef _POSIX_C_SOURCE # define _POSIX_C_SOURCE 200809L #endif -#if ((!defined __STRICT_ANSI__ || (_XOPEN_SOURCE - 0) >= 500) && \ - !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE) +#if ((!defined __STRICT_ANSI__ \ + || (defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 500)) \ + && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE) # define _POSIX_SOURCE 1 # if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 500 # define _POSIX_C_SOURCE 2 @@ -239,7 +240,9 @@ # define __USE_POSIX_IMPLICITLY 1 #endif -#if defined _POSIX_SOURCE || _POSIX_C_SOURCE >= 1 || defined _XOPEN_SOURCE +#if (defined _POSIX_SOURCE \ + || (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 1) \ + || defined _XOPEN_SOURCE) # define __USE_POSIX 1 #endif @@ -247,15 +250,15 @@ # define __USE_POSIX2 1 #endif -#if (_POSIX_C_SOURCE - 0) >= 199309L +#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199309L # define __USE_POSIX199309 1 #endif -#if (_POSIX_C_SOURCE - 0) >= 199506L +#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199506L # define __USE_POSIX199506 1 #endif -#if (_POSIX_C_SOURCE - 0) >= 200112L +#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200112L # define __USE_XOPEN2K 1 # undef __USE_ISOC95 # define __USE_ISOC95 1 @@ -263,7 +266,7 @@ # define __USE_ISOC99 1 #endif -#if (_POSIX_C_SOURCE - 0) >= 200809L +#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200809L # define __USE_XOPEN2K8 1 # undef _ATFILE_SOURCE # define _ATFILE_SOURCE 1 |