From debbugs-submit-bounces@debbugs.gnu.org Sun Jan 19 16:17:03 2020 Received: (at 30756) by debbugs.gnu.org; 19 Jan 2020 21:17:03 +0000 Received: from localhost ([127.0.0.1]:43966 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1itHwN-0004PY-BP for submit@debbugs.gnu.org; Sun, 19 Jan 2020 16:17:03 -0500 Received: from eggs.gnu.org ([209.51.188.92]:35894) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1itHwK-0004Oy-Fh for 30756@debbugs.gnu.org; Sun, 19 Jan 2020 16:17:01 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]:39805) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1itHwF-0001Vj-7a; Sun, 19 Jan 2020 16:16:55 -0500 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=33334 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1itHwE-0000W6-MA; Sun, 19 Jan 2020 16:16:55 -0500 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Reza Housseini Subject: Re: bug#30756: GCC >= 6 '-isystem' and C_INCLUDE_PATH behavior changed, breaking References: X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 30 =?utf-8?Q?Niv=C3=B4se?= an 228 de la =?utf-8?Q?R?= =?utf-8?Q?=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Sun, 19 Jan 2020 22:16:52 +0100 In-Reply-To: (Reza Housseini's message of "Fri, 17 Jan 2020 11:23:07 +0100") Message-ID: <87y2u3qh8b.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 30756 Cc: reza.housseini@gmx.ch, 30756@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) Hi, Reza Housseini skribis: > So what is the workaround for this bug when one wants to use gcc >=3D 6.0= .0 > with a cmake build system? Guix has been using GCC 7.x as its default compiler for some time, and everything works well, CMake or not. However, we also switched to using =E2=80=98CPATH=E2=80=99 instead of =E2=80=98C_INCLUDE_PATH=E2=80=99 to work= around this bug. HTH! Ludo=E2=80=99.