[PATCH] Add header guard to several header files.

[Kito Cheng]

ping!

On Tue, Sep 2, 2014 at 12:37 AM, Kito Cheng <kito.cheng@gmail.com> wrote:
> Hi Joseph:
>
> Thanks for your review, I've reverted the part of gsyslimits.h,
> here is updated patch and ChangeLog :)
>
> bootstrap ok for x86_64
>
> 2014-09-01  Kito Cheng  <kito@0xlab.org>
>
>     except.h: Fix header guard.
>     addresses.h: Add missing header guard.
>     cfghooks.h: Likewise.
>     collect-utils.h: Likewise.
>     collect2-aix.h: Likewise.
>     conditions.h: Likewise.
>     cselib.h: Likewise.
>     dwarf2asm.h: Likewise.
>     graphds.h: Likewise.
>     graphite-scop-detection.h: Likewise.
>     gsyms.h: Likewise.
>     hw-doloop.h: Likewise.
>     incpath.h: Likewise.
>     ipa-inline.h: Likewise.
>     ipa-ref.h: Likewise.
>     ira-int.h: Likewise.
>     ira.h: Likewise.
>     lra-int.h: Likewise.
>     lra.h: Likewise.
>     lto-section-names.h: Likewise.
>     read-md.h: Likewise.
>     reload.h: Likewise.
>     rtl-error.h: Likewise.
>     sdbout.h: Likewise.
>     target-def.h: Likewise.
>     target-hooks-macros.h: Likewise.
>     targhooks.h: Likewise.
>     tree-affine.h: Likewise.
>     xcoff.h: Likewise.
>     xcoffout.h: Likewise.
>
> On Mon, Sep 1, 2014 at 11:56 PM, Joseph S. Myers
> <joseph@codesourcery.com> wrote:
>> On Mon, 1 Sep 2014, Kito Cheng wrote:
>>
>>>     gsyslimits.h: Likewise.
>>
>> This is incorrect.  This is a very special header file, installed as part
>> of the implementation of <limits.h>; it certainly can't use any
>> user-namespace identifiers, and it's probably not safe for it to have
>> header guards at all.
>>
>> --
>> Joseph S. Myers
>> joseph@codesourcery.com