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Huettel" Cc: libc-alpha@sourceware.org, binutils@sourceware.org, gcc@gcc.gnu.org, config-patches@gnu.org, distributions@lists.linux.dev, devel@lists.fedoraproject.org, glaubitz@debian.org, maskray@google.com, dickey@invisible-island.net, toolchain@gentoo.org Subject: Re: Proposed CHOST change for the 64bit time_t transition Message-ID: Mail-Followup-To: "Andreas K. Huettel" , libc-alpha@sourceware.org, binutils@sourceware.org, gcc@gcc.gnu.org, config-patches@gnu.org, distributions@lists.linux.dev, devel@lists.fedoraproject.org, glaubitz@debian.org, maskray@google.com, dickey@invisible-island.net, toolchain@gentoo.org References: <4996568.GXAFRqVoOG@noumea> Precedence: bulk X-Mailing-List: distributions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="0l//PxkQOa9boaIv" Content-Disposition: inline In-Reply-To: <4996568.GXAFRqVoOG@noumea> --0l//PxkQOa9boaIv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 04, 2024 at 17:48:04 +0200, Andreas K. Huettel wrote: > Dear all,=20 >=20 > in Gentoo Linux we want to change our CHOST triplets for 32-bit glibc sys= tems that use 64-bit time_t, since > this is technically an ABI change which breaks binary compatibility [1]. >=20 > We are thinking of adding a "t64" suffix to the ABI field, resulting in f= or example i686-pc-linux-gnut64, > armv7a-unknown-linux-gnueabihft64, ... [2] >=20 > * So far my research indicates that in the GNU toolchain (gcc, glibc, bin= utils) anything behind -gnu is=20 > ignored (as ABI version, which this effectively is too). Is this correc= t or do you foresee problems here? > I've had a small chroot rebuild itself (the Gentoo @system set) with i6= 86-pc-linux-gnut64 and only had to > add a minor patch to ncurses [3]; everything else worked fine. >=20 =2E.. > [3] https://bpa.st/HV6BS FYI, this paste expires in 1 week. Here's the contents: diff '--color=3Dauto' -ruN ncurses-6.4.orig/aclocal.m4 ncurses-6.4/aclocal.= m4 --- ncurses-6.4.orig/aclocal.m4 2024-08-29 20:47:34.978057133 +0000 +++ ncurses-6.4/aclocal.m4 2024-08-29 20:48:57.809473044 +0000 @@ -10139,7 +10139,7 @@ cf_xopen_source=3D"-D_SGI_SOURCE" cf_XOPEN_SOURCE=3D ;; -(linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|li= nux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys|mingw*|linux*uclibc) +(linux*gnu*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys|mingw*|linux*uclibc) CF_GNU_SOURCE($cf_XOPEN_SOURCE) ;; (minix*) --0l//PxkQOa9boaIv Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQfOU+JeXjo4uxN6vCp8he9GGIfEQUCZtj8IgAKCRCp8he9GGIf Ef64AQDRWB3iutTanlfsHGLAbzDqCRo0QhDIAYHXyhtajll7YQEA07Ox/xR/RILT mphlh5QIfnqRrE95HnV0tqSB97k0Fw0= =Zh2M -----END PGP SIGNATURE----- --0l//PxkQOa9boaIv--