#include <errno.h> /* For detecting Plan9. */
-#if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+#if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
# if defined __DragonFly__ /* DragonFly */
/* See <http://www.dragonflybsd.org/cvsweb/src/lib/libc/stdio/priv_stdio.h?rev=HEAD&content-type=text/x-cvsweb-markup>. */
/* More fields, not relevant here. */
};
# define fp_ub ((struct __sfileext *) fp->_ext._base)->_ub
-# else /* FreeBSD, NetBSD <= 1.5Z, DragonFly, MacOS X, Cygwin */
+# else /* FreeBSD, NetBSD <= 1.5Z, DragonFly, Mac OS X, Cygwin */
# define fp_ub fp_->_ub
# endif