old-cross-binutils/gdb/gnulib/import/m4/extern-inline.m4
Joel Brobecker a512b37576 Update gnulib to current HEAD.
gdb/ChangeLog:

        * gnulib/update-gnulib.sh (GNULIB_COMMIT_SHA1): Set to
        8d5bd1402003bd0153984b138735adf537d960b0.
        * gnulib/aclocal.m4, configure, config.in: Regenerate.
        * gnulib/import/m4/extern-inline.m4: Import.
        * gnulib/import/wctype-h.c: Import.
        * gnulib/import/Makefile.am: Update.
        * gnulib/import/Makefile.in: Update.
        * gnulib/import/alloca.in.h: Update.
        * gnulib/import/extra/snippet/warn-on-use.h: Update.
        * gnulib/import/localcharset.c: Update.
        * gnulib/import/m4/fcntl-o.m4: Update.
        * gnulib/import/m4/gnulib-cache.m4: Update.
        * gnulib/import/m4/gnulib-comp.m4: Update.
        * gnulib/import/m4/wctype_h.m4: Update.
        * gnulib/import/stdbool.in.h: Update.
        * gnulib/import/verify.h: Update.
        * gnulib/import/wctype.in.h: Update.
2012-12-18 06:00:55 +00:00

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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],
[
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.
Suppress the use of extern inline on Apple's platforms,
as Libc-825.25 (2012-09-19) is incompatible with it; see
<http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html>.
Perhaps Apple will fix this some day. */
#if ((__GNUC__ \
? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \
: 199901L <= __STDC_VERSION__) \
&& !defined __APPLE__)
# define _GL_INLINE inline
# define _GL_EXTERN_INLINE extern inline
#elif 2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __APPLE__
# if __GNUC_GNU_INLINE__
/* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */
# define _GL_INLINE extern inline __attribute__ ((__gnu_inline__))
# else
# define _GL_INLINE extern inline
# endif
# define _GL_EXTERN_INLINE extern
#else
# define _GL_INLINE static _GL_UNUSED
# define _GL_EXTERN_INLINE static _GL_UNUSED
#endif
#if 4 < __GNUC__ + (6 <= __GNUC_MINOR__)
# if defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__
# define _GL_INLINE_HEADER_CONST_PRAGMA
# else
# define _GL_INLINE_HEADER_CONST_PRAGMA \
_Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"")
# endif
# define _GL_INLINE_HEADER_BEGIN \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \
_Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \
_GL_INLINE_HEADER_CONST_PRAGMA
# define _GL_INLINE_HEADER_END \
_Pragma ("GCC diagnostic pop")
#else
# define _GL_INLINE_HEADER_BEGIN
# define _GL_INLINE_HEADER_END
#endif])
])