This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [PATCH][revisedx4] Fix PR bootstrap/54419

From: Paolo Carlini <paolo dot carlini at oracle dot com>
To: Jack Howarth <howarth at bromo dot med dot uc dot edu>
Cc: gcc-patches at gcc dot gnu dot org, drepper at gmail dot com, dominiq at lps dot ens dot fr, Jakub Jelinek <jakub at redhat dot com>
Date: Fri, 07 Sep 2012 22:13:18 +0200
Subject: Re: [PATCH][revisedx4] Fix PR bootstrap/54419
References: <20120907140241.GA4912@bromo.med.uc.edu>

Hi,

On 09/07/2012 04:02 PM, Jack Howarth wrote:

    The attached patch eliminates the bootstrap failures in libstdc++-v3
of PR 54419 by adding a define to acinclude.m4, GLIBCXX_CHECK_X86_RDRAND, that
checks for assembler support of the new rdrnd opcode, using this new define
in configure.ac and also defining _GLIBCXX_X86_RDRAND in config.h if supported.
Tested on x86_64-apple-darwin12 against the assembler from Xcode 4.4.1.
Modified to utilize AC_MSG_CHECKING, AC_CACHE_VAL and AC_MSG_RESULT in acinclude.m4.
Okay for gcc trunk?

From the library configury point of view the patch looks Ok to me, but I didn't really follow the whole discussion. Jakub is it OK with you?

Thanks,
Paolo.

References:
- [PATCH][revisedx4] Fix PR bootstrap/54419
  - From: Jack Howarth

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]