The STLport will probably become broken again, but I'll work on fixing it
later.

I wish someone would explain why the NetBSD Cirtus branch has the types
in their stddef.h...

     Spell _BSD_TIME_T_ consistently as `int'.
	 Update comments.
	 Style tweaks.

Convert all users of fldoff() to offsetof().  fldoff() is bad
because it only takes a struct tag which makes it impossible to
use unions, typedefs etc.

Define __offsetof() in <machine/ansi.h>
Define offsetof() in terms of __offsetof() in <stddef.h> and <sys/types.h>

If _ANSI_SOURCE or _POSIX_SOURCE is defined, then <ctype.h> had to
be included before <stddef.h> or <stdlib.h> to get rune_t declared.
Now rune_t is declared perfectly bogusly in all cases when <ctype.h>
is included.

This change breaks similar (but more convoluted) convolutions in the
stddef.h in gcc distributions.  Ports of gcc should avoid using the
gcc headers.