diff options
| author | Paul Eggert <eggert@cs.ucla.edu> | 2012-08-01 21:46:10 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2012-08-01 21:46:10 -0700 |
| commit | a0d4efe9c3c01fde58b401ee5ab88f052128fa85 (patch) | |
| tree | 70862330c792d4ba0d16d9b389e742d65ddf2004 /m4/extern-inline.m4 | |
| parent | 13294f95172c68a5e77143f917231e0f17f37537 (diff) | |
| download | emacs-a0d4efe9c3c01fde58b401ee5ab88f052128fa85.tar.gz | |
Merge from gnulib, for extern-inline.
2012-08-01 extern-inline: new module
2012-08-01 stat-time, timespec, u64, utimens: use extern-inline
* lib/stat-time.c, lib/utimespec.c, lib/u64.c, m4/extern-inline.m4:
New files. The new .c files are for instantiating extern inline
functions.
Fixes: debbugs:12116
Diffstat (limited to 'm4/extern-inline.m4')
| -rw-r--r-- | m4/extern-inline.m4 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/m4/extern-inline.m4 b/m4/extern-inline.m4 new file mode 100644 index 00000000000..cacf8a08b16 --- /dev/null +++ b/m4/extern-inline.m4 @@ -0,0 +1,40 @@ +dnl 'extern inline' a la ISO C99. + +dnl Copyright 2012 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_EXTERN_INLINE], +[ + AC_REQUIRE([AC_C_INLINE]) + AH_VERBATIM([extern_inline], +[/* _GL_INLINE is a portable alternative to ISO C99 plain 'inline'. + _GL_EXTERN_INLINE is a portable alternative to 'extern inline'. + _GL_INLINE_HEADER_BEGIN contains useful stuff to put + in an include file, before uses of _GL_INLINE. + It suppresses GCC's bogus "no previous prototype for 'FOO'" diagnostic, + when FOO is an inline function in the header; see + <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113>. + _GL_INLINE_HEADER_END contains useful stuff to put + in the same include file, after uses of _GL_INLINE. */ +#if __GNUC__ ? __GNUC_STDC_INLINE__ : 199901L <= __STDC_VERSION__ +# define _GL_INLINE inline +# define _GL_EXTERN_INLINE extern inline +# if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__ +# define _GL_INLINE_HEADER_BEGIN \ + _Pragma ("GCC diagnostic push") \ + _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") +# define _GL_INLINE_HEADER_END \ + _Pragma ("GCC diagnostic pop") +# endif +#else +# define _GL_INLINE static inline +# define _GL_EXTERN_INLINE static inline +#endif + +#ifndef _GL_INLINE_HEADER_BEGIN +# define _GL_INLINE_HEADER_BEGIN +# define _GL_INLINE_HEADER_END +#endif]) +]) |