diff options
Diffstat (limited to 'include/features.h')
| -rw-r--r-- | include/features.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/include/features.h b/include/features.h index bf47d881dd..8187539581 100644 --- a/include/features.h +++ b/include/features.h @@ -24,6 +24,7 @@ __STRICT_ANSI__ ISO Standard C. _ISOC99_SOURCE Extensions to ISO C89 from ISO C99. _ISOC11_SOURCE Extensions to ISO C99 from ISO C11. + _ISOC2X_SOURCE Extensions to ISO C99 from ISO C2X. __STDC_WANT_LIB_EXT2__ Extensions to ISO C99 from TR 27431-2:2010. __STDC_WANT_IEC_60559_BFP_EXT__ @@ -139,6 +140,7 @@ #undef __USE_GNU #undef __USE_FORTIFY_LEVEL #undef __KERNEL_STRICT_NAMES +#undef __GLIBC_USE_ISOC2X #undef __GLIBC_USE_DEPRECATED_GETS #undef __GLIBC_USE_DEPRECATED_SCANF @@ -195,6 +197,8 @@ # define _ISOC99_SOURCE 1 # undef _ISOC11_SOURCE # define _ISOC11_SOURCE 1 +# undef _ISOC2X_SOURCE +# define _ISOC2X_SOURCE 1 # undef _POSIX_SOURCE # define _POSIX_SOURCE 1 # undef _POSIX_C_SOURCE @@ -216,26 +220,37 @@ #if (defined _DEFAULT_SOURCE \ || (!defined __STRICT_ANSI__ \ && !defined _ISOC99_SOURCE && !defined _ISOC11_SOURCE \ + && !defined _ISOC2X_SOURCE \ && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE \ && !defined _XOPEN_SOURCE)) # undef _DEFAULT_SOURCE # define _DEFAULT_SOURCE 1 #endif +/* This is to enable the ISO C2X extension. */ +#if (defined _ISOC2X_SOURCE \ + || (defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L)) +# define __GLIBC_USE_ISOC2X 1 +#else +# define __GLIBC_USE_ISOC2X 0 +#endif + /* This is to enable the ISO C11 extension. */ -#if (defined _ISOC11_SOURCE \ +#if (defined _ISOC11_SOURCE || defined _ISOC2X_SOURCE \ || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L)) # define __USE_ISOC11 1 #endif /* This is to enable the ISO C99 extension. */ -#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ +#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ + || defined _ISOC2X_SOURCE \ || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)) # define __USE_ISOC99 1 #endif /* This is to enable the ISO C90 Amendment 1:1995 extension. */ -#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ +#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ + || defined _ISOC2X_SOURCE \ || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199409L)) # define __USE_ISOC95 1 #endif |