This function is missing on some platforms:
NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 4.3.2, HP-UX 11, IRIX 6.5, OSF/1 5.1,
Solaris 10, Cygwin 1.5.x, mingw, MSVC 9, Interix 3.5.
+@item
+This function cannot be called from plain inline or extern inline functions
+on some platforms:
+OS X 10.8.
@end itemize
Portability problems not fixed by Gnulib: