Commit ddd30c54 authored by Paul Eggert's avatar Paul Eggert

extern-inline: do not always suppress extern inline on OS X

* m4/extern-inline.m4 (gl_EXTERN_INLINE): Suppress the use of
extern inline on Apple only if the particular compile-time
configuration is known to have the problem.
(_GL_EXTERN_INLINE_APPLE_BUG): New private macro, to implement this.
(_GL_EXTERN_LNLINE_IN_USE): New macro, intended for use by
other Gnulib modules.
parent 7425595f
2013-09-19 Paul Eggert <eggert@cs.ucla.edu>
extern-inline: do not always suppress extern inline on OS X
* m4/extern-inline.m4 (gl_EXTERN_INLINE): Suppress the use of
extern inline on Apple only if the particular compile-time
configuration is known to have the problem.
(_GL_EXTERN_INLINE_APPLE_BUG): New private macro, to implement this.
(_GL_EXTERN_LNLINE_IN_USE): New macro, intended for use by
other Gnulib modules.
extern-inline: document fixes for ctype and wctype macros
* doc/posix-functions/isalnum.texi, doc/posix-functions/isalpha.texi:
* doc/posix-functions/isascii.texi, doc/posix-functions/isblank.texi:
......@@ -19,20 +19,28 @@ AC_DEFUN([gl_EXTERN_INLINE],
'reference to static identifier "f" in extern inline function'.
This bug was observed with Sun C 5.12 SunOS_i386 2011/11/16.
Suppress the use of extern inline on Apple's platforms, as Libc at least
through Libc-825.26 (2013-04-09) is incompatible with it; see, e.g.,
Suppress the use of extern inline on problematic Apple configurations, as
Libc at least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
<http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html>.
Perhaps Apple will fix this some day. */
#if (defined __APPLE__ \
&& ((! defined _DONT_USE_CTYPE_INLINE_ \
&& (defined __GNUC__ || defined __cplusplus)) \
|| (defined _FORTIFY_SOURCE && 0 < _FORTIFY_SOURCE \
&& defined __GNUC__ && ! defined __cplusplus)))
# define _GL_EXTERN_INLINE_APPLE_BUG
#endif
#if ((__GNUC__ \
? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \
: (199901L <= __STDC_VERSION__ \
&& !defined __HP_cc \
&& !(defined __SUNPRO_C && __STDC__))) \
&& !defined __APPLE__)
&& !defined _GL_EXTERN_INLINE_APPLE_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 __APPLE__)
&& !defined _GL_EXTERN_INLINE_APPLE_BUG)
# if __GNUC_GNU_INLINE__
/* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */
# define _GL_INLINE extern inline __attribute__ ((__gnu_inline__))
......@@ -40,6 +48,7 @@ AC_DEFUN([gl_EXTERN_INLINE],
# 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
......
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