diff options
Diffstat (limited to 'm4-gl/extern-inline.m4')
| -rw-r--r-- | m4-gl/extern-inline.m4 | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/m4-gl/extern-inline.m4 b/m4-gl/extern-inline.m4 deleted file mode 100644 index ec9f221..0000000 --- a/m4-gl/extern-inline.m4 +++ /dev/null @@ -1,114 +0,0 @@ -dnl 'extern inline' a la ISO C99. - -dnl Copyright 2012-2019 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], -[/* Please see the Gnulib manual for how to use these macros. - - Suppress extern inline with HP-UX cc, as it appears to be broken; see - <https://lists.gnu.org/r/bug-texinfo/2013-02/msg00030.html>. - - Suppress extern inline with Sun C in standards-conformance mode, as it - mishandles inline functions that call each other. E.g., for 'inline void f - (void) { } inline void g (void) { f (); }', c99 incorrectly complains - 'reference to static identifier "f" in extern inline function'. - This bug was observed with Sun C 5.12 SunOS_i386 2011/11/16. - - Suppress extern inline (with or without __attribute__ ((__gnu_inline__))) - on configurations that mistakenly use 'static inline' to implement - functions or macros in standard C headers like <ctype.h>. For example, - if isdigit is mistakenly implemented via a static inline function, - a program containing an extern inline function that calls isdigit - may not work since the C standard prohibits extern inline functions - from calling static functions (ISO C 99 section 6.7.4.(3). - This bug is known to occur on: - - OS X 10.8 and earlier; see: - https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html - - DragonFly; see - http://muscles.dragonflybsd.org/bulk/bleeding-edge-potential/latest-per-pkg/ah-tty-0.3.12.log - - FreeBSD; see: - https://lists.gnu.org/r/bug-gnulib/2014-07/msg00104.html - - OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and - for clang but remains for g++; see <https://trac.macports.org/ticket/41033>. - Assume DragonFly and FreeBSD will be similar. - - GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99 - inline semantics, unless -fgnu89-inline is used. It defines a macro - __GNUC_STDC_INLINE__ to indicate this situation or a macro - __GNUC_GNU_INLINE__ to indicate the opposite situation. - GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline - semantics but warns, unless -fgnu89-inline is used: - warning: C99 inline functions are not supported; using GNU89 - warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute - It defines a macro __GNUC_GNU_INLINE__ to indicate this situation. - */ -#if (((defined __APPLE__ && defined __MACH__) \ - || defined __DragonFly__ || defined __FreeBSD__) \ - && (defined __header_inline \ - ? (defined __cplusplus && defined __GNUC_STDC_INLINE__ \ - && ! defined __clang__) \ - : ((! defined _DONT_USE_CTYPE_INLINE_ \ - && (defined __GNUC__ || defined __cplusplus)) \ - || (defined _FORTIFY_SOURCE && 0 < _FORTIFY_SOURCE \ - && defined __GNUC__ && ! defined __cplusplus)))) -# define _GL_EXTERN_INLINE_STDHEADER_BUG -#endif -#if ((__GNUC__ \ - ? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \ - : (199901L <= __STDC_VERSION__ \ - && !defined __HP_cc \ - && !defined __PGI \ - && !(defined __SUNPRO_C && __STDC__))) \ - && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) -# define _GL_INLINE inline -# define _GL_EXTERN_INLINE extern inline -# define _GL_EXTERN_INLINE_IN_USE -#elif (2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __STRICT_ANSI__ \ - && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) -# if defined __GNUC_GNU_INLINE__ && __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 -# define _GL_EXTERN_INLINE_IN_USE -#else -# define _GL_INLINE static _GL_UNUSED -# define _GL_EXTERN_INLINE static _GL_UNUSED -#endif - -/* In GCC 4.6 (inclusive) to 5.1 (exclusive), - suppress bogus "no previous prototype for 'FOO'" - and "no previous declaration for 'FOO'" diagnostics, - when FOO is an inline function in the header; see - <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113> and - <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63877>. */ -#if __GNUC__ == 4 && 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]) -]) |