From owner-svn-doc-all@freebsd.org Wed Mar 18 12:29:38 2020 Return-Path: Delivered-To: svn-doc-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 435C425EC4C; Wed, 18 Mar 2020 12:29:38 +0000 (UTC) (envelope-from tobik@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48j8Vn1thDz3xrw; Wed, 18 Mar 2020 12:29:37 +0000 (UTC) (envelope-from tobik@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id F1A6F21E40; Wed, 18 Mar 2020 12:29:36 +0000 (UTC) (envelope-from tobik@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 02ICTaiM099015; Wed, 18 Mar 2020 12:29:36 GMT (envelope-from tobik@FreeBSD.org) Received: (from tobik@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 02ICTanK099014; Wed, 18 Mar 2020 12:29:36 GMT (envelope-from tobik@FreeBSD.org) Message-Id: <202003181229.02ICTanK099014@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: tobik set sender to tobik@FreeBSD.org using -f From: Tobias Kortkamp Date: Wed, 18 Mar 2020 12:29:36 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r53991 - head/en_US.ISO8859-1/books/porters-handbook/special X-SVN-Group: doc-head X-SVN-Commit-Author: tobik X-SVN-Commit-Paths: head/en_US.ISO8859-1/books/porters-handbook/special X-SVN-Commit-Revision: 53991 X-SVN-Commit-Repository: doc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire doc trees \(except for " user" , " projects" , and " translations" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Mar 2020 12:29:38 -0000 Author: tobik (ports committer) Date: Wed Mar 18 12:29:36 2020 New Revision: 53991 URL: https://svnweb.freebsd.org/changeset/doc/53991 Log: Porter's Handbook: Document CARGO_FEATURES==--no-default-features Approved by: bcr Differential Revision: https://reviews.freebsd.org/D23999 Modified: head/en_US.ISO8859-1/books/porters-handbook/special/chapter.xml Modified: head/en_US.ISO8859-1/books/porters-handbook/special/chapter.xml ============================================================================== --- head/en_US.ISO8859-1/books/porters-handbook/special/chapter.xml Wed Mar 18 08:48:01 2020 (r53990) +++ head/en_US.ISO8859-1/books/porters-handbook/special/chapter.xml Wed Mar 18 12:29:36 2020 (r53991) @@ -857,7 +857,14 @@ CMAKE_OFF= VAR3 CARGO_FEATURES List of application features to build (space - separated list). + separated list). To deactivate all default + features add the special token + --no-default-features + to CARGO_FEATURES. Manually + passing it to CARGO_BUILD_ARGS, + CARGO_INSTALL_ARGS, and + CARGO_TEST_ARGS is not + needed. @@ -1127,6 +1134,35 @@ rust/crates/atty-0.2.9.tar.gz 100% of yaml features: CARGO_FEATURES= json yaml + + + + Encoding Application Features As Port Options + + An example [features] section + in Cargo.toml could look like + this: + + [features] +pulseaudio_backend = ["librespot-playback/pulseaudio-backend"] +portaudio_backend = ["librespot-playback/portaudio-backend"] +default = ["pulseaudio_backend"] + + pulseaudio_backend is a default + feature. It is always enabled unless we explicitly turn + off default features by adding + --no-default-features to + CARGO_FEATURES. Here we turn the + portaudio_backend + and pulseaudio_backend features into + port options: + + CARGO_FEATURES= --no-default-features + +OPTIONS_DEFINE= PORTAUDIO PULSEAUDIO + +PORTAUDIO_VARS= CARGO_FEATURES+=portaudio_backend +PULSEAUDIO_VARS= CARGO_FEATURES+=pulseaudio_backend