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From: Andreas Schwab <schwab@suse.de>
To: <Paul_Koning@Dell.com>
Cc: <palves@redhat.com>,  <gdb@sourceware.org>
Subject: Re: Why pedantic?
References: <F7BDA5B1-D300-42DB-968F-C4AEBFA880C2@dell.com>	<55DC3DE1.5000605@redhat.com>	<075A8681-8112-4F94-A6D2-765DC677B37C@dell.com>	<mvmfv3734d8.fsf@hawking.suse.de>	<9F3A813A-9CB4-4B8B-9D4F-7E687B95834C@dell.com>
X-Yow: "DARK SHADOWS" is on!!  Hey, I think the VAMPIRE forgot his UMBRELLA!!
Date: Tue, 25 Aug 2015 13:44:00 -0000
In-Reply-To: <9F3A813A-9CB4-4B8B-9D4F-7E687B95834C@dell.com> (Paul Koning's	message of "Tue, 25 Aug 2015 13:17:51 +0000")
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<Paul_Koning@Dell.com> writes:

>> On Aug 25, 2015, at 9:05 AM, Andreas Schwab <schwab@suse.de> wrote:
>> 
>> <Paul_Koning@Dell.com> writes:
>> 
>>> The problem is that the libiberty build, as is typical, uses header files from the host, and there is no reason to assume that all those headers on every supported host OS are pedantic-safe.
>> 
>> GCC suppresses warnings in system headers by default.
>
> For cross-builds?

Yes.  The cross environment should be identical to the native one, apart
from the different host.

>  Not in the ones we do.  Is there some command line switch that needs to be passed to tell gcc that a particular include directory is for "system headers" and to apply that rule?  

-isystem

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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"And now for something completely different."