X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org From: "Dave Korn" To: References: <31069.8817.qm@web8804.mail.in.yahoo.com> <472876A1.4060005@computer.org> <20071031124125.GA3827@implementation.uk.xensource.com> <010d01c81bbc$de8726e0$2e08a8c0@CAM.ARTIMI.COM> <20071031131841.GB3827@implementation.uk.xensource.com> Subject: RE: GCC compiler -m64 option in cygwin Date: Wed, 31 Oct 2007 13:38:30 -0000 Message-ID: <011101c81bc3$5329a530$2e08a8c0@CAM.ARTIMI.COM> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <20071031131841.GB3827@implementation.uk.xensource.com> Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id l9VDceNB002413 On 31 October 2007 13:19, Samuel Thibault wrote: > Dave Korn, le Wed 31 Oct 2007 12:52:18 -0000, a écrit : >> On 31 October 2007 12:41, Samuel Thibault wrote: >>> Tim Prince, le Wed 31 Oct 2007 05:35:45 -0700, a écrit : >>>> No, there is no 64-bit native support in cygwin. Even on linux, a >>>> cross-gcc is needed to create 64-bit build on a 32-bit system, >>> >>> Nope, gcc now has multi-lib support. >> >> ITYM biarch. > > If you prefer, yes (the configure option is called > --enable/disable-multilib). Uh, no, that configures multilibbing, you're conflating two separate things here; it's worth getting the terminology right. Biarch is a property of the backend, which can generate 32/64 bit code regardless of whether or not you have the right libgcc versions available or not. Multilib is a feature that is used to support and complete the operation of biarch, the two work together, but it's an independent and orthogonal feature, used also by many non-biarch architectures. cheers, DaveK -- Can't think of a witty .sigline today.... -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/