HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| a0d4efe9 PE |
1 | dnl 'extern inline' a la ISO C99. |
| 2 | ||
| 3 | dnl Copyright 2012 Free Software Foundation, Inc. | |
| 4 | dnl This file is free software; the Free Software Foundation | |
| 5 | dnl gives unlimited permission to copy and/or distribute it, | |
| 6 | dnl with or without modifications, as long as this notice is preserved. | |
| 7 | ||
| 8 | AC_DEFUN([gl_EXTERN_INLINE], | |
| 9 | [ | |
| 10 | AC_REQUIRE([AC_C_INLINE]) | |
| 11 | AH_VERBATIM([extern_inline], | |
| 12 | [/* _GL_INLINE is a portable alternative to ISO C99 plain 'inline'. | |
| 13 | _GL_EXTERN_INLINE is a portable alternative to 'extern inline'. | |
| 14 | _GL_INLINE_HEADER_BEGIN contains useful stuff to put | |
| 15 | in an include file, before uses of _GL_INLINE. | |
| 16 | It suppresses GCC's bogus "no previous prototype for 'FOO'" diagnostic, | |
| 17 | when FOO is an inline function in the header; see | |
| 18 | <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113>. | |
| 19 | _GL_INLINE_HEADER_END contains useful stuff to put | |
| 20 | in the same include file, after uses of _GL_INLINE. */ | |
| 21 | #if __GNUC__ ? __GNUC_STDC_INLINE__ : 199901L <= __STDC_VERSION__ | |
| 22 | # define _GL_INLINE inline | |
| 23 | # define _GL_EXTERN_INLINE extern inline | |
| 01b13eb7 PE |
24 | #elif 2 < __GNUC__ + (7 <= __GNUC_MINOR__) |
| 25 | # if __GNUC_GNU_INLINE__ | |
| 26 | /* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */ | |
| 27 | # define _GL_INLINE extern inline __attribute__ ((__gnu_inline__)) | |
| 28 | # else | |
| 29 | # define _GL_INLINE extern inline | |
| a0d4efe9 | 30 | # endif |
| 01b13eb7 | 31 | # define _GL_EXTERN_INLINE extern |
| a0d4efe9 PE |
32 | #else |
| 33 | # define _GL_INLINE static inline | |
| 34 | # define _GL_EXTERN_INLINE static inline | |
| 35 | #endif | |
| 36 | ||
| 01b13eb7 PE |
37 | #if 4 < __GNUC__ + (6 <= __GNUC_MINOR__) |
| 38 | # if __GNUC_STDC_INLINE__ | |
| 39 | # define _GL_INLINE_HEADER_CONST_PRAGMA | |
| 40 | # else | |
| 41 | # define _GL_INLINE_HEADER_CONST_PRAGMA \ | |
| 42 | _Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"") | |
| 43 | # endif | |
| 44 | # define _GL_INLINE_HEADER_BEGIN \ | |
| 45 | _Pragma ("GCC diagnostic push") \ | |
| 46 | _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \ | |
| 47 | _Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \ | |
| 48 | _GL_INLINE_HEADER_CONST_PRAGMA | |
| 49 | # define _GL_INLINE_HEADER_END \ | |
| 50 | _Pragma ("GCC diagnostic pop") | |
| 51 | #else | |
| a0d4efe9 PE |
52 | # define _GL_INLINE_HEADER_BEGIN |
| 53 | # define _GL_INLINE_HEADER_END | |
| 54 | #endif]) | |
| 55 | ]) |