diff options
Diffstat (limited to 'src/conf_post.h')
| -rw-r--r-- | src/conf_post.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/conf_post.h b/src/conf_post.h index 5cb385d9029..b19456749a2 100644 --- a/src/conf_post.h +++ b/src/conf_post.h @@ -207,11 +207,53 @@ extern void _DebPrint (const char *fmt, ...); #undef noinline #endif +/* Use Gnulib's extern-inline module for extern inline functions. + An include file foo.h should prepend FOO_INLINE to function + definitions, with the following overall pattern: + + [#include any other .h files first.] + ... + INLINE_HEADER_BEGIN + #ifndef FOO_INLINE + # define FOO_INLINE INLINE + #endif + ... + FOO_INLINE int + incr (int i) + { + return i + 1; + } + ... + INLINE_HEADER_END + + The corresponding foo.c file should do this: + + #define FOO_INLINE EXTERN_INLINE + + before including any .h file other than config.h. + Other .c files should not define FOO_INLINE. + + C99 compilers compile functions like 'incr' as C99-style extern + inline functions. Pre-C99 GCCs do something similar with + GNU-specific keywords. Pre-C99 non-GCC compilers use static + functions, which bloats the code but is good enough. */ + #define INLINE _GL_INLINE #define EXTERN_INLINE _GL_EXTERN_INLINE #define INLINE_HEADER_BEGIN _GL_INLINE_HEADER_BEGIN #define INLINE_HEADER_END _GL_INLINE_HEADER_END +/* To use the struct hack with N elements, declare the struct like this: + struct s { ...; t name[FLEXIBLE_ARRAY_MEMBER]; }; + and allocate (offsetof (struct s, name) + N * sizeof (t)) bytes. */ +#if 199901 <= __STDC_VERSION__ +# define FLEXIBLE_ARRAY_MEMBER +#elif __GNUC__ && !defined __STRICT_ANSI__ +# define FLEXIBLE_ARRAY_MEMBER 0 +#else +# define FLEXIBLE_ARRAY_MEMBER 1 +#endif + /* Use this to suppress gcc's `...may be used before initialized' warnings. */ #ifdef lint /* Use CODE only if lint checking is in effect. */ |