From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxim Cournoyer Subject: Re: question regarding substitute* and #t Date: Thu, 25 Jan 2018 22:53:49 -0500 Message-ID: <877es58ecy.fsf@gmail.com> References: <20180124010802.18874.3012@vcs0.savannah.gnu.org> <20180124010803.590AF2068F@vcs0.savannah.gnu.org> <874lnbzck5.fsf_-_@netris.org> <87372v8ndd.fsf_-_@igalia.com> <87h8rbtmhl.fsf@netris.org> <87y3kn706z.fsf@igalia.com> <87inbq8pyf.fsf@gmail.com> <87bmhijs0p.fsf@igalia.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:45798) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eev5P-0005Co-CL for guix-devel@gnu.org; Thu, 25 Jan 2018 22:53:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eev5M-0001ip-Ax for guix-devel@gnu.org; Thu, 25 Jan 2018 22:53:55 -0500 Received: from mail-it0-x231.google.com ([2607:f8b0:4001:c0b::231]:39719) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eev5M-0001iY-5y for guix-devel@gnu.org; Thu, 25 Jan 2018 22:53:52 -0500 Received: by mail-it0-x231.google.com with SMTP id 68so485292ite.4 for ; Thu, 25 Jan 2018 19:53:52 -0800 (PST) In-Reply-To: <87bmhijs0p.fsf@igalia.com> (Andy Wingo's message of "Thu, 25 Jan 2018 08:51:02 +0100") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Andy Wingo Cc: guix-devel@gnu.org Andy Wingo writes: > On Thu 25 Jan 2018 06:31, Maxim Cournoyer writes: > >> Where does this `invoke' comes from? Geiser is unhelpful at finding it, >> and it doesn't seem to be documented in the Guile Reference? > > https://lists.gnu.org/archive/html/guix-devel/2018-01/msg00163.html OK, so `invoke' is defined in (guix build utils), and it's docstring is: "Invoke PROGRAM with the given ARGS. Raise an error if the exit code is non-zero; otherwise return #t." Thanks, Maxim