Generalize common compile-time constants.

* lisp.h (header_size, bool_header_size, word_size): Now here.
(struct Lisp_Vector): Add comment.
(struct Lisp_Bool_Vector): Move up to define handy constants.
(VECSIZE, PSEUDOVECSIZE): Simplify.
(SAFE_ALLOCA_LISP): Use new constant.  Adjust indentation.
* buffer.c, buffer.h, bytecode.c, callint.c, eval.c, fns.c:
* font.c, fontset.c, keyboard.c, keymap.c, macros.c, menu.c:
* msdos.c, w32menu.c, w32term.h, window.c, xdisp.c, xfaces.c:
* xfont.c, xmenu.c: Use word_size where appropriate.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/buffer.h b/src/buffer.h
index b13aab8443e..9ca714b6707 100644
--- a/src/buffer.h
+++ b/src/buffer.h
@@ -1029,7 +1029,7 @@ extern int last_per_buffer_idx;
 #define FOR_EACH_PER_BUFFER_OBJECT_AT(offset)                            \
   for (offset = PER_BUFFER_VAR_OFFSET (name);                            \
        offset <= PER_BUFFER_VAR_OFFSET (cursor_in_non_selected_windows); \
-       offset += sizeof (Lisp_Object))
+       offset += word_size)
 
 /* Return the index of buffer-local variable VAR.  Each per-buffer
    variable has an index > 0 associated with it, except when it always