在Linux CentOS上编译并安装Clang 3.5.0

wget http://people.centos.org/tru/devtools-2/devtools-2.repo -O /etc/yum.repos.d/devtools-2.repo
yum install devtoolset-2-gcc devtoolset-2-binutils devtoolset-2-gcc-c++
ln -s /opt/rh/devtoolset-2/root/usr/bin/* /usr/local/bin/

We detected a missing feature in the standard C++ library that was known to be
missing in libstdc++4.6 and implemented in libstdc++4.7. There are numerous
C++11 problems with 4.6's library, and we don't support GCCs or libstdc++ older
than 4.7.

yum install zlib-devel
yum install bzip2-devel
yum install openssl-devel
yum install ncurses-devel
yum install sqlite-devel

cd /opt
wget --no-check-certificate https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tar.xz
tar xf Python-2.7.9.tar.xz
cd Python-2.7.9

./configure --prefix=/usr/local
make && make altinstall

ln -s /usr/local/bin/python2.7 /usr/local/bin/python

dd if=/dev/zero of=/swapfile bs=1k count=2048000
mkswap /swapfile
swapon /swapfile

/swapfile               swap                    swap    defaults        0 0

http://llvm.org/releases/3.5.0/llvm-3.5.0.src.tar.xz
mv llvm-3.5.0.src llvm

cd llvm/tools
wget http://llvm.org/releases/3.5.0/cfe-3.5.0.src.tar.xz
tar xf cfe-3.5.0.src.tar.xz
mv cfe-3.5.0.src clang

cd ../projects
wget http://llvm.org/releases/3.5.0/compiler-rt-3.5.0.src.tar.xz
tar xf compiler-rt-3.5.0.src.tar.xz
mv compiler-rt-3.5.0.src compiler-rt

cd ..
./configure --enable-optimized CC=gcc CXX=g++

make -j2

llvm[0]: ***** Completed Release+Asserts Build

make install

# clang --version
clang version 3.5.0 (tags/RELEASE_350/final)