8

How do I install CLang on Ubuntu, using precompiled binaries of CLang that I downloaded?

Here's how I downloaded CLang: "LLVM Download Page" -> "Download LLVM 3.2" -> "Clang Binaries for Ubuntu-12.04/x86_64" ( http://llvm.org/releases/3.2/clang+llvm-3.2-x86_64-linux-ubuntu-12.04.tar.gz .)

Then, I expanded the archive into a folder on my Ubuntu 12.04 LTS 64-bit machine. The contents of the expanded folder look like this:

$ ls clang+llvm-3.2-x86_64-linux-ubuntu-12.04
bin  docs  include  lib  share

Question: What do I do next? Do I have to copy these into some folders myself, and if so, which ones exactly? Most instructions I found online are for building CLang from source, which doesn't apply here.

I am a newbie to most of these tools. I created a basic hello-world C++ program, and was able to compile and run it, using GCC and autotools. Now, I want to compile the same program with CLang.

Thanks

Also asked on StackOverflow: How to install CLang using precompiled binaries?: https://stackoverflow.com/questions/17045954/how-to-install-clang-using-precompiled-binaries .

Possible duplicate: How do I install LLVM/Clang 3.0? (However, that answer does not have the specific steps needed.)

1
  • My answer gives the installation instructions, if you are interested I can add removal instructions as well? – andrew.46 Jun 11 '16 at 23:55
4
+50

Perhaps the easiest way to install this archive is to use the following 2 commands:

wget http://llvm.org/releases/3.2/clang+llvm-3.2-x86_64-linux-ubuntu-12.04.tar.gz
sudo tar -C /usr/local -xvf clang+llvm-3.2-x86_64-linux-ubuntu-12.04.tar.gz --strip 1

This works nicely on my 12.04 VM and gives the following:

andrew@ithaca:~$ clang --version
clang version 3.2 (tags/RELEASE_32/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
andrew@ithaca:~$ 

This installation takes away the ability to easily remove the package with standard Ubuntu package management tools but the following single command will remove all of the installed files:

sudo rm -v /usr/local/bin/{clang*,llc,lli,llvm*,macho-dump,opt,bugpoint,c-index-test} && \
sudo rm -rfv /usr/local/docs/llvm && \
sudo rm -rfv /usr/local/include/{clang,clang-c,llvm,llvm-c} && \
sudo rm -v /usr/local/share/man/man1/clang.1 && \
sudo rm -rfv /usr/local/lib/clang && \
sudo rm -v /usr/local/lib/{BugpointPasses.so,libclang*,libLLVM*,libLTO*,libprofile_rt*,LLVM*}

Tested on my own system and it removes the files cleanly...

2
  • And how do you remove it then? – nom Jun 12 '16 at 5:59
  • I have added in the removal instructions which work nicely on my own Precise installation. – andrew.46 Jun 12 '16 at 10:09

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.