mre/llvm_clang_eclipse.md

## llvm_clang_eclipse.md

      
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              llvm_clang_eclipse.md
            
          
    How to setup llvm and clang for eclipse

This guide is many years old is most likely outdated.
I'll keep it here for reference; use at your own risk.
Tested on Mac OSX 10.6.7 with LLVM and CLANG version 2.9
Eclipse Helios Service Release 1 (Build 20100917-0705)
1) Installing LLVM and clang

Enter the following commands in a shell:
Grab the code from the repository:

svn co http://llvm.org/svn/llvm-project/llvm/tags/RELEASE_29/final llvm
cd llvm/tools
svn co http://llvm.org/svn/llvm-project/cfe/tags/RELEASE_29/final/ clang

Configure and build:

./configure --enable-optimized # Removes debugging flags. Makes compiling much faster
gmake -j2                      # (64bit, 2 jobs at a time)
sudo gmake install             # This puts llvm and clang into /usr/local

2) Running LLVM in Eclipse:

Required plugins


Install CDT: http://www.eclipse.org/cdt/downloads.php
Install the LLVM toolchain for Eclipse CDT from http://marketplace.eclipse.org/node/28778

Adjust settings


Go into Eclipse preferences > C/C++ > Build > Environment and click "Select".
Click on the box next to the PATH variable and "OK".
The variable will appear in the list. Click on "Edit" and enter the path
to the clang installation into the "Value"-Field (i.e. /usr/local/bin)
Go to Preferences > LLVM and enter "usr/local/" in LLVM installation folder.

Try it out

Try to build a sample C++ project or create a new project under File > New > C++ Project.
Good luck :)
Pro tip

Adjust the CDT indexer settings for faster code completion:
Preferences > C/C++ > Indexer