From: Ian Lance Taylor <iant@google.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: gcc-help@gcc.gnu.org
Subject: Re: detecting when an option is not available
Date: Tue, 12 Jun 2012 20:44:00 -0000 [thread overview]
Message-ID: <mcrpq94dzw8.fsf@dhcp-172-18-216-180.mtv.corp.google.com> (raw)
In-Reply-To: <m2txyhf1x6.fsf@igel.home> (Andreas Schwab's message of "Tue, 12 Jun 2012 09:02:29 +0200")
Andreas Schwab <schwab@linux-m68k.org> writes:
> Ian Lance Taylor <iant@google.com> writes:
>
>> The trick to find out if a -Wno- option is supported is to force a
>> compiler error. E.g.,
>
> The trick to find out if a -Wno- option is supported is to check if the
> positive form is accepted. See ACX_PROG_CC_WARNING_OPTS.
That does seems simpler. Thanks.
Ian
next prev parent reply other threads:[~2012-06-12 20:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.64.1206120015560.16674@grozny.maths.univ-evry.fr>
[not found] ` <mcrfwa1gk4c.fsf@dhcp-172-18-216-180.mtv.corp.google.com>
2012-06-12 7:02 ` Andreas Schwab
2012-06-12 20:44 ` Ian Lance Taylor [this message]
2012-06-12 5:49 Vincent Torri
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