tree.h vs include guard

[Gabriel Dos Reis]

Zack Weinberg <zack@codesourcery.com> writes:

| On Wed, Aug 14, 2002 at 02:54:29AM +0200, Gabriel Dos Reis wrote:
| > 
| > Hi,
| > 
| >   I noticed that tree.h has no guard to prevent multiple-inclusions.
| > Why so?  FWIW, c-tree.h, c-common.h and cp-tree.h do have such a
| > thing.
| 
| Patches to add multiple include guards to all of GCC's internal
| headers have been submitted in the past, but never approved and
| applied, probably because they'd need an OK from someone with global
| write privileges and all those people were too busy to review the
| patch.
| 
| It was agreed, last time this came up, that in principle they should
| all have guards.

Thanks for the reminder.  Do you have references to those patches?
I realized that we're in stage 3, so maybe those patches are
inappropriate at this moment; but I think they should be queued for
after mainline is unfrozen.

-- Gaby