diff options
Diffstat (limited to 'sys/types.h')
| -rw-r--r-- | sys/types.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/types.h b/sys/types.h index b9976b7..9533372 100644 --- a/sys/types.h +++ b/sys/types.h @@ -43,6 +43,14 @@ SOFTWARE. # define _POSIX_SOURCE #endif +#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 19901L +# if (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 200112L) +# error POSIX.1-2001 and later require a C99 compiler +# elif (defined _XOPEN_SOURCE && _XOPEN_SOURCE >= 600) +# error XOPEN Issue 6 and later require a C99 compiler +# endif +#endif + #if (defined _POSIX_SOURCE) /* ./src/sys/types/dev_t.c */ #ifndef __TYPE_dev_t_DEFINED__ |