CMake Error: The following variables are used in this project, but they are set to NOTFOUND.

[SpiritedAway]

when I generate makefile, the list errors is shown below:

 $cmake -G "Unix Makefiles" -DUSE_SYSTEM_LIBCLANG=ON . ~/.vim/bundle/YouCompleteMe/cpp

-- The C compiler identification is GNU 4.7.3

-- The CXX compiler identification is GNU 4.7.3

-- Check for working C compiler: /usr/bin/cc

-- Check for working C compiler: /usr/bin/cc -- works

-- Detecting C compiler ABI info

-- Detecting C compiler ABI info - done

-- Check for working CXX compiler: /usr/bin/c++

-- Check for working CXX compiler: /usr/bin/c++ -- works

-- Detecting CXX compiler ABI info

-- Detecting CXX compiler ABI info - done

Your C++ compiler supports C++11, compiling in that mode.

-- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython2.7.so (found suitable version "2.7.4", minimum required is "2.5") 

Using libclang to provide semantic completion for C/C++/ObjC

Using external libclang: TEMP-NOTFOUND

-- Found PythonInterp: /usr/bin/python (found version "2.7.4") 

-- Looking for include file pthread.h

-- Looking for include file pthread.h - found

-- Looking for pthread_create

-- Looking for pthread_create - not found

-- Looking for pthread_create in pthreads

-- Looking for pthread_create in pthreads - not found

-- Looking for pthread_create in pthread

-- Looking for pthread_create in pthread - found

-- Found Threads: TRUE  

CMake Error: The following variables are used in this project, but they are set to NOTFOUND.

Please set them or make sure they are set and tested correctly in the CMake files:

TEMP

    linked by target "ycm_core" in directory /home/free/.vim/bundle/YouCompleteMe/cpp/ycm

-- Configuring incomplete, errors occurred!

$ clang --version

Ubuntu clang version 3.2-1~exp9ubuntu1 (tags/RELEASE_32/final) (based on LLVM 3.2)

Target: x86_64-pc-linux-gnu

Thread model: posix

$ whereis clang

clang: /usr/bin/clang /usr/lib/clang /usr/bin/X11/clang /usr/include/clang /usr/share/clang /usr/share/man/man1/clang.1.gz

How can I fix it? Thanks folks!

[Val Markovic]

Did you try using the install.sh script? It sets everything up for you so you don't have to compile yourself.

If compiling by yourself, did you go through the full installation guide in the docs?

The error is telling you that CMake couldn't find libclang on your system. You may want to set EXTERNAL_LIBCLANG_PATH in the CMake call explicitly. See the installation guide for details.

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[Freewanting]

Yeah, I have read the context about full installation guide for several times. 

At first, I execute install.sh, there's no errors in progress.  I want to it supported C-family languages, so I use ./install.sh --clang-completer.

And I found it will auto download clang of version 3.3. But after it compiled successful, I found it can't work however.  

Then I tried to compiled by myself, I use "sudo apt-get install clang" to install clang that it's version is 3.2. This step I have a little question if I want to use 

system version of libclang about how to 

set DEXTERNAL_LIBCLANG_PATH, because I can't find libclang.so in my system(ubuntu13.04 x64  after install clang).

And my vim version is 7.4a

Thanks very much!