苹果提供 Ubuntu上构建Swift 的教程,通过这个教程我尝试使用CentOS7.2
上玩儿一把。目前已经成功在CentOS7.2上班成功安装 swift 4.0
swift --version
Swift version 4.0-dev
Target: x86_64-unknown-linux-gnu
yum install -y git clang gcc-c++ uuid-devel libicu-devel icu libedit-devel libxml2-devel sqlite-devel swig python-devel ncurses-libs ncurses-devel pkgconfig libuuid-devel epel-release libbsd-devel
更新CMake
对 CMake 3.4.3
版本有要求,必须比 CMake 3.4.3
高。CMake官网
# 下载
wget https://cmake.org/files/v3.9/cmake-3.9.0.tar.gz
# 解压
tar -zxvf cmake-3.9.0.tar.gz
cd cmake-3.9.0
./bootstrap --prefix=/usr
make
sudo make install
打开 https://swift.org/source-code/#cloned-repositories 找到 Cloned Repositories
创建 mkdir -p /usr/local/swift && cd /usr/local/swift
目录并进入swift
# 下载 swift-llvm
wget https://github.com/apple/swift-llvm/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P llvm
tar -zxvf swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -C src/llvm
# 下载 swift-clang
wget https://github.com/apple/swift-clang/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P clang
# 下载 swift-lldb
wget https://github.com/apple/swift-lldb/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P lldb
# 下载 swift-cmark
wget https://github.com/apple/swift-cmark/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P cmark
# 下载 swift
wget https://github.com/apple/swift/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P swift
# 下载 ninja
wget https://github.com/ninja-build/ninja/archive/v1.7.2.tar.gz -P ninja
上面采用 开发板编译花了三个小时,后面用 released 版本编译,警告少了许多,而且编译快了相当多呢,所以你需要选择一个稳定的 released 版本安装。
wget https://github.com/ninja-build/ninja/archive/v1.7.2.tar.gz -P ninja
wget https://github.com/apple/swift/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P swift
wget https://github.com/apple/swift-cmark/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P cmark
wget https://github.com/apple/swift-lldb/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P lldb
wget https://github.com/apple/swift-clang/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P clang
wget https://github.com/apple/swift-llvm/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-29-a.tar.gz -P llvm
wget https://github.com/apple/swift-corelibs-libdispatch/archive/swift-DEVELOPMENT-SNAPSHOT-2017-07-30-a.tar.gz -P swift-corelibs-libdispatch
安装之后的目录结构
swift/
└── src
├── clang
├── cmark
├── lldb
├── llvm
├── ninja
├── swift-corelibs-libdispatch
└── swift
yum install re2c -y # re2c 是一个用于编写快速灵活的词法分析器的工具
编译
./configure.py --bootstrap
cp ninja /usr/local/bin/
在文件 vi /etc/profile
添加下面代码,添加完成之后,source /etc/profile
更改立即生效。
export SWIFT_SOURCE_ROOT=/usr/local/swift/src
进入cd /usr/local/swift/src/swift/utils/
目录,运行脚本
# ./build-script -R
# 上面命令会报错,建议使用下面命令
# https://github.com/apple/swift/pull/3594#issuecomment-234169759
./build-script --libdispatch
./build-script --libdispatch --extra-cmake-options="-DSWIFT_BUILD_SOURCEKIT:BOOL=TRUE"
swap
区不够大的原因。导致clang++ kernel opps
clang: error: unable to execute command: Killed
clang: error: linker command failed due to signal (use -v to see invocation)
请加大分区:
sudo fallocate -l 4G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
开机自动挂载swap: 使用 vi 或 nano 在 /etc/fstab 文件底部添加如下内容:
/swapfile none swap sw 0 0
libatomic不存在
# 错误
/usr/bin/ld: cannot find /usr/lib64/libatomic.so.1.0.0
解决办法,building swift on centos。
# 下载
# 这里https://pkgs.org/download/libatomic找对应的rpm下载地址
wget --no-check-certificate -O /etc/yum.repos.d/libatomic-4.8.5-11.el7.x86_64.rpm ftp://ftp.pbone.net/mirror/ftp.centos.org/7.3.1611/os/x86_64/Packages/libatomic-4.8.5-11.el7.x86_64.rpm
# 安装
rpm -ivh libatomic-4.8.5-11.el7.x86_64.rpm
编译完成,设置环境信息 vi ~/.bash_profile
PATH=$PATH:/usr/local/swift/src/build/Ninja-ReleaseAssert/swift-linux-x86_64/bin
立即生效source ~/.bash_profile
添加 touch ~/HelloWorld.swift
文件,添加下面代码测试
print("Hello world!")
编译 swift
文件
swiftc ~/HelloWorld.swift -o ~/Hello
运行 ~/Hello
输出 Hello world!
大功告成!