Question

我很难在Ubuntu 16.04上安装Swift 3.0和GCD。现在这应该是可能的，对吗？

下面是一个Ansible任务，用于从swift.org下载Swift 3，克隆，构建和安装来自GitHub的swift-corelibs-libdispatch。

即使libdispatch的安装完成没有错误，它也不起作用。当我在Swift repl中尝试import Dispatch时，它抱怨缺少功能＆＃34;块＆＃34;。检查Makefile确认，至少标志-fblocks已提供给编译器。

这是Swift repl的示例输出：

vagrant@swift3:/tmp/swift-3.0-PREVIEW-3-ubuntu15.10/usr/bin$ ./swift
Welcome to Swift version 3.0 (swift-3.0-PREVIEW-3). Type :help for assistance.
  1> 6 * 7
$R0: Int = 42
  2> import Dispatch
error: module 'CDispatch' requires feature 'blocks'
error: could not build Objective-C module 'CDispatch'

  2>

用于设置框的Vagrantfile：

# -*- mode: ruby -*-
# vi: set ft=ruby :


Vagrant.configure(2) do |config|
    config.ssh.forward_agent = true
    config.vm.box = "bento/ubuntu-16.04"

    config.vm.define "swift3" do |dev|
        dev.vm.hostname = "swift3.dev"
    end

    config.vm.network :private_network, ip: "10.0.0.10"

    config.vm.provider "virtualbox" do |vb|
        vb.memory = "2048"
    end

    config.vm.provision "ansible" do |ansible|
        ansible.playbook = "ansible/main.yml"
    end
end

安装Swift 3的Ansible任务：

---

- name: Install Swift 3 requirements
  apt: name={{ item }} state=installed
  with_items:
  - autoconf
  - clang
  - git
  - libblocksruntime-dev
  - libbsd-dev
  - libcurl4-openssl-dev
  - libdispatch-dev
  - libkqueue-dev
  - libpython2.7-dev
  - libtool
  - pkg-config


- name: download Swift 3
  get_url: url=https://swift.org/builds/swift-3.0-preview-3/ubuntu1510/swift-3.0-PREVIEW-3/swift-3.0-PREVIEW-3-ubuntu15.10.tar.gz
           dest=/tmp/swift.tgz mode=0440

- name: unarchive Swift 3
  unarchive: dest=/tmp src=/tmp/swift.tgz copy=no creates=/tmp/swift-3.0-PREVIEW-3-ubuntu15.10

- name: clone Swift 3 libdispatch core library
  git: repo=https://github.com/apple/swift-corelibs-libdispatch dest=/tmp/swift-corelibs-libdispatch
       version=swift-3.0-preview-3-branch force=true

- name: generate Swift 3 libdispatch build files
  command: "sh ./autogen.sh"
  args:
    chdir: /tmp/swift-corelibs-libdispatch

- name: configure Swift 3 libdispatch
  command: "sh ./configure --with-blocks-runtime=/usr/lib/x86_64-linux-gnu --with-swift-toolchain=/tmp/swift-3.0-PREVIEW-3-ubuntu15.10/usr --prefix=/tmp/swift-3.0-PREVIEW-3-ubuntu15.10/usr"
  args:
    chdir: /tmp/swift-corelibs-libdispatch

- name: make Swift 3 libdispatch
  command: "make"
  args:
    chdir: /tmp/swift-corelibs-libdispatch

- name: install Swift 3 libdispatch
  command: "make install"
  args:
    chdir: /tmp/swift-corelibs-libdispatch

- name: grant permissions to use Swift 3
  file: dest=/tmp/swift-3.0-PREVIEW-3-ubuntu15.10 mode=a+rX recurse=true

Answer 1

正如您已经注意到，编译时为libdispatch正确设置了$(document).ready(function() { var content, fetchAndInsert; content = $('div#content'); // Fetches and inserts content into the container fetchAndInsert = function(href) { $.ajax({ url: 'http://localhost:8000/phpexample/content/' + href.split('/').pop(), method: 'GET', cache: false, success: function(data) { content.html(data); } }); }; // User goes back/forward $(window).on('popstate', function() { fetchAndInsert(location.pathname); }); $('.buttonlink').click(function(){ var href = $(this).attr('href'); // Manipulate history history.pushState(null, null, href); // Fetch and insert content fetchAndInsert(href); return false; }); });链接器标志。这很好，因为现在你有一个工作版本的libdispatch。

不幸的是，你包含-fblocks的任何内容 也需要Dispatch链接器标记。

tl; dr解决方案是在编译时简单地向-fblocks提供-Xcc -fblocks。

这就是我所说的解决方法。提出了长期解决方案"ClangImporter: enable -fblocks on non-Darwin platforms"。在此之前，虽然上述解决方案是从您到达目的地的最短距离。

我自己添加，我只是使用上面的pull请求中的补丁来修补我的本地版本。 YMMV。

使用Ansible在Linux上安装Swift 3 + libdispatch

1 个答案: