From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#22186: Use {C,CPLUS,OBJC}_INCLUDE_PATH instead of CPATH
Date: Fri, 18 Dec 2015 15:09:00 +0100
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References: <871tama22g.fsf@igalia.com> <87mvt8iwei.fsf@inria.fr>
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To: Andy Wingo <wingo@igalia.com>
Cc: 22186@debbugs.gnu.org

Andy Wingo <wingo@igalia.com> skribis:

> On Thu 17 Dec 2015 22:43, ludo@gnu.org (Ludovic Court=C3=A8s) writes:
>
>> Andy Wingo <wingo@igalia.com> skribis:
>>
>>> We should be using C_INCLUDE_PATH instead of CPATH, to mark system
>>> headers as system headers.  Except that C_INCLUDE_PATH only works for
>>> C, so we need to also set CPLUS_INCLUDE_PATH and OBJC_INCLUDE_PATH.
>>> And that's the proposal of this bug :)
>>
>> The intent of this =E2=80=9Csystem header=E2=80=9D classification, AIUI,=
 is to not
>> bother users with issues in libc headers.
>
> I don't think this is true, for what it's worth :)  If we take FHS
> systems to be the de-facto default standard on how things should behave,
> -isystem covers all of /usr/include, so in practice it covers not just
> libc warnings, but many other warnings, which when you pass -Werror
> would then become errors.

Now that you mention it, it makes a lot of sense to me; I must have
lived away from FHS for too long now.  ;-)

We=E2=80=99re right on time to make the change you propose in =E2=80=98core=
-updates=E2=80=99.
I=E2=80=99ll give it a try and we=E2=80=99ll see how it goes.

Thanks for bearing with me!

Ludo=E2=80=99.