X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fextern-inline.m4;h=4862d60d8e7416d109c9e5428225015ffefeac4d;hb=fa1db0dd22768f09a507674a30beb5b8a87bb35f;hp=4e801e31f4194ae541cb9a333eb7056f65929c65;hpb=68f90afdb82204c27a50e7bce169d2b3795a1ddd;p=gnulib.git

diff --git a/m4/extern-inline.m4 b/m4/extern-inline.m4
index 4e801e31f..4862d60d8 100644
--- a/m4/extern-inline.m4
+++ b/m4/extern-inline.m4
@@ -19,19 +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
-#elif 2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __APPLE__
+# define _GL_EXTERN_INLINE_IN_USE
+#elif (2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __STRICT_ANSI__ \
+       && !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__))
@@ -39,6 +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