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Merge from gnulib, for extern-inline.

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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
This commit is contained in:
Paul Eggert 2012-08-01 21:46:10 -07:00
parent 13294f9517
commit a0d4efe9c3
12 changed files with 136 additions and 23 deletions
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40
m4/extern-inline.m4 Normal file
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@ -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])
])