Jolie Rouge

all ur parentheses Я belong to me

clang++, libc++ on Kubuntu (c++11, c++0x) Compiling and Linking

This is what I did to compile the latest Clang on Kubunut (AKA Kuboobtu).


First things first. You’ll need to download llvm. You may need to set permissions on /usr/local/src

sud apt-get install gcc g++ subversion
cd /usr/local/src
svn co llvm

Then you will need clang.


cd llvm/tools
svn co clang

Next, you will need to patch up clang/lib/Frontend/InitHeaderSearch.cpp

cd clang/lib/Frontend
vim InitHeaderSearch.cpp

// FIXME: temporary hack: hard-coded paths.
        Twine _x("/usr/include/c++/4.6");
        Twine _x1("/usr/include/c++/4.6/x86_64-linux-gnu/.");
        Twine _x2("/usr/include/c++/4.6/backward");
        Twine _x3("/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include");
        Twine _x4("/usr/local/include");
        Twine _x5("/usr/lib/gcc/x86_64-linux-gnu/4.6.3/include-fixed");
        Twine _x6("/usr/include/x86_64-linux-gnu");
        Twine _x7("/usr/include");
        AddPath(_x, System,false);
        AddPath(_x1, System, false);
        AddPath(_x2, System,  false);
        AddPath(_x3, System, false);
        AddPath(_x4, System, false);
        AddPath(_x5, System,false);
        AddPath(_x6, System, false);
        AddPath(_x7, System, false);

I can’t remember why I did it this way…You should be able to write strings directly as the first argument of AddPath, but I didn’t, it was like 1 a.m. and you go with what you know.

cd /usr/local/src/llvm
mkdir buid
cd build
../configure --enable-targets=host-only --enable-optimized 
make -j 5
sudo make install

Hopefully that will take care of getting clang on your system. At this point, I created a tar of the whole shebang as it was a successful build and I wanted to keep it around just in case I fucked things up after this point.

cd /usr/local/src
svn co libcxx
cd libcxx/lib


cd /usr/lib
sudo ln -sf /usr/local/src/libcxx/lib/ 
sudo ln -sf /usr/local/libcxx/lib/
cd /usr/include/c++
sudo ln -sf /usr/local/src/libcxx/include v1

Many thanks to solarianprogrammer as most of the details actually came from his post on the same topic. There were 1 or 2 small differences in what I did to get success. I post it here because sites and blogs come and go.