Linux上成功编译CoreCLR源代码

>>Build日期：2015-2-5下午（编译失败）。

开始Linux发行版用的是CentOS 6.5，操作步骤：

1）配置git： git config --global http.sslverify false

2）签出github上的CoreCLR代码库： git clone https://github.com/dotnet/coreclr.git

3）安装cmake： yum install cmake

4）安装clang： yum install clang

5）运行build命令： sh build.sh

6）build结果——失败！错误信息如下：

Commencing CoreCLR Repo build
Checking pre-requisites...
Commencing build of native components for amd64/debug
Invoking cmake with arguments: /data/git/coreclr DEBUG
Detected Linux x86_64
-- Configuring done
-- Generating done
-- Build files have been written to: /data/git/coreclr/binaries/CMake
Executing make
[  0%] Building CXX object src/pal/src/CMakeFiles/CoreClrPal.dir/exception/seh.cpp.o
In file included from /data/git/coreclr/src/pal/src/exception/seh.cpp:22:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/typeinfo:34:
In file included from /usr/bin/../lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/exception:148:
/usr/bin/../lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/exception_ptr.h:143:13: error: unknown type
      name 'type_info'
      const type_info*
            ^
1 error generated.
make[2]: *** [src/pal/src/CMakeFiles/CoreClrPal.dir/exception/seh.cpp.o] Error 1
make[1]: *** [src/pal/src/CMakeFiles/CoreClrPal.dir/all] Error 2
make: *** [all] Error 2
Failed to build coreclr components.

【更新】

>>Build日期：2015-2-5晚上（编译成功）。

后来，将遇到的这个问题在github coreclr issue #77中提交了一下，很快有人回复编译器只能用clang 3.5。

看了一下CentOS安装的最新版clang是clang 3.4.2，看来是这个问题引起的。

要到LLVM官网上一看，预编译好的clang 3.5有Ubuntu的版本，但没有CentOS的。

于是，干脆将操作系统换成Ubuntu。在Ubuntu上用apt-get install clang安装，也是clang 3.4，只有手动安装clang 3.5。

手动安装参考的是园子里的这篇博文：在 Linux 下使用 clang 3.0 + llvm 3.0 + libc++。

在Ubuntu中编译CoreCLR的实际操作步骤如下：

1）安装cmake： apt-get install cmake

2）下载预编译好的clang 3.5： wget http://llvm.org/releases/3.5.0/clang+llvm-3.5.0-x86_64-linux-gnu-ubuntu-14.04.tar.xz

3）解压下载好的clang 3.5压缩包： tar xvf clang+llvm-3.5.0-x86_64-linux-gnu-ubuntu-14.04.tar.xz

4）进入解压后的文件夹： cd clang+llvm-3.5.0-x86_64-linux-gnu

5）复制其中的文件至/usr： cp -R * /usr

6）编译CoreCLR： sh build.sh

7）等待编译结果：

Commencing CoreCLR Repo build
build.sh: 101: build.sh: Bad substitution
build.sh: 161: [: false: unexpected operator
Checking pre-requisites...
Commencing build of native components for amd64/debug
Invoking cmake with arguments: /data/git/coreclr DEBUG
Detected Linux x86_64
-- Configuring done
-- Generating done
-- Build files have been written to: /data/git/coreclr/binaries/CMake
Executing make
[  0%] Building CXX object src/pal/src/CMakeFiles/CoreClrPal.dir/exception/seh.cpp.o
...

结果。。。编译成功了！

[100%] Built target mscordaccore
Install the project...
-- Install configuration: "DEBUG"
-- Installing: /data/git/coreclr/binaries/Product/amd64/debug/./corerun
-- Installing: /data/git/coreclr/binaries/Product/amd64/debug/./libmscordaccore.so
-- Installing: /data/git/coreclr/binaries/Product/amd64/debug/./libcoreclr.so
Repo successfully built.
Product binaries are available at /data/git/coreclr/binaries/Product/amd64/debug

耶！大功告成！

/data/git/coreclr/binaries/Product/amd64/debug# ls
corerun  libcoreclr.so  libmscordaccore.so

【补充】

GitHub上已经有了专门的参考资料：Building and Running CoreCLR on Linux