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How to install clang on Ubuntu 14.04

For one thing, installing clang on Ubuntu is a time spending task.

You can do it as the way through the link Clang-getting started( I don't suggest that, cause I didn't successful).

Here is my way!

First you need  to install the application of  g++, cmake, subversion.

{CSDN:CODE:sudo apt-get install g++}

{CSDN:CODE:sudo apt-get install cmake}
{CSDN:CODE:sudo apt-get install subversion}

Second, you need to make a directory to repository the whole stuff, including source file, makefile or something else. You can do it like this:

{CSDN:CODE: mkdir ~/Software_Source/Clang_source && cd ~/Software_Source/Clang_source}

Third, you need to download the stuff of llvm and clang using the program of svn:

{CSDN:CODE:svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm
}


{CSDN:CODE:cd llvm/tools}


{CSDN:CODE:svn co http://llvm.org/svn/llvm-project/cfe/trunk clang}

Forth, when that was done.  You will enter the step of installing the clang, which contains configure->make->make install.



{CSDN:CODE:cd ../..}



{CSDN:CODE:mkdir build $$ cd build}



{CSDN:CODE:../configure --prefix=/usr/clang --enable-optimized --enable-targets=host --disable-compiler-version-checks
}



{CSDN:CODE:make}



{CSDN:CODE:make install}

Fifth, set the environment PATH variable.



{CSDN:CODE:cd ~ && vim .bashrc}

and append "export PATH=/usr/clang/bin:$PATH"(ATTENTION: no space is allowed beside the one between 'export and PATH')

Sixth, close the terminal and reopen it. type "clang --help"  to checkout.