diff options
Diffstat (limited to 'gcc/system.h')
| -rw-r--r-- | gcc/system.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/system.h b/gcc/system.h index ace7177047b..0ee1510aae0 100644 --- a/gcc/system.h +++ b/gcc/system.h @@ -43,6 +43,10 @@ Boston, MA 02111-1307, USA. */ # endif #endif +#ifdef HAVE_STDDEF_H +# include <stddef.h> +#endif + #include <stdio.h> /* Define a generic NULL if one hasn't already been defined. */ @@ -355,6 +359,14 @@ extern void abort PARAMS ((void)); ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) #endif +/* 1 if we have _Bool. */ +#ifndef HAVE__BOOL +# define HAVE__BOOL \ + ((GCC_VERSION >= 3000) || (__STDC_VERSION__ >= 199901L)) +#endif + + + /* Define a STRINGIFY macro that's right for ANSI or traditional C. Note: if the argument passed to STRINGIFY is itself a macro, eg #define foo bar, STRINGIFY(foo) will produce "foo", not "bar". @@ -533,4 +545,27 @@ extern void *alloca (__SIZE_TYPE__); #endif /* ! __FUNCTION__ */ #endif +/* Provide some sort of boolean type. We use stdbool.h if it's + available. This is dead last because various system headers might + mess us up. */ +#undef bool +#undef true +#undef false +#undef TRUE +#undef FALSE + +#ifdef HAVE_STDBOOL_H +# include <stdbool.h> +#else +# if !HAVE__BOOL +typedef char _Bool; +# endif +# define bool _Bool +# define true 1 +# define false 0 +#endif + +#define TRUE true +#define FALSE false + #endif /* __GCC_SYSTEM_H__ */ |