[cfe-dev] Error in Tutorial for building tools using LibTooling and LibASTMatchers

[Pedro Delgado Perez]

Thank you very much, Manuel, but should I have to make again the rest of the instructions?

I made what you told me and now, when I run
cmake -G Ninja ../llvm -DLLVM_BUILD_TESTS=ON
I get the next error:

CMake Error: The source "/usr/llvm/llvm/CMakeLists.txt" does not match the source "/usr/llvm/CMakeLists.txt" used to generate cache. Re-run cmake with a different source directory.

Do you think i should start from scratch?

El dia 04 feb 2013 12:58, Manuel Klimek <klimek at google.com> escribió:
> If you follow those steps:
> mkdir ~/clang-llvm && cd ~/clang-llvm
> git clone http://llvm.org/git/llvm.git [ http://llvm.org/git/llvm.git ]
> You'll have a directory ~/clang-llvm/llvm
> Then, after
> cd ~/clang-llvm
> mkdir build && cd build
> 
> you'll have a ../llvm directory.
> If you change the paths you'll need to adapt the commands to still work :)
> 
> 
> 
> On Mon, Feb 4, 2013 at 12:39 PM, Pedro Delgado Perez <pedro.delgadoperez at mail.uca.es [ mailto:pedro.delgadoperez at mail.uca.es ]> wrote:
> 
> 
> Hello everyone,
> 
> I've been following the Tutorial for building tools using LibTooling and LibASTMatchers:
> 
> http://clang.llvm.org/docs/LibASTMatchersTutorial.html [ http://clang.llvm.org/docs/LibASTMatchersTutorial.html ]
> 
> I didn't accomplish the Step 0 as I had followed the "getting started guide" before to get llvm and clang. Then, everything was right until I reached to the instruction:
> 
> cmake -G Ninja ../llvm -DLLVM_BUILD_TESTS=ON
> 
> Then, I got the next errors:
> 
> -- The C compiler identification is GNU 4.6.3
> -- Check for working C compiler using: Ninja
> -- Check for working C compiler using: Ninja -- works
> -- Detecting C compiler ABI info
> -- Detecting C compiler ABI info - done
> -- The CXX compiler identification is GNU 4.6.3
> -- Check for working CXX compiler using: Ninja
> -- Check for working CXX compiler using: Ninja -- works
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> CMake Error at CMakeLists.txt:23 (include):
>  include could not find load file:
> 
>    VersionFromVCS
> 
> 
> CMake Error at CMakeLists.txt:153 (include):
>  include could not find load file:
> 
>    AddLLVMDefinitions
> 
> 
> CMake Error at CMakeLists.txt:239 (include):
>  include could not find load file:
> 
>    config-ix
> 
> 
> CMake Error at CMakeLists.txt:247 (include):
>  include could not find load file:
> 
>    HandleLLVMOptions
> 
> 
> -- Found PythonInterp: /usr/bin/python (found version "2.7.3") 
> -- Constructing LLVMBuild project information
> CMake Error at CMakeLists.txt:306 (message):
>  Unexpected failure executing llvm-build: Usage: llvm-build [options]
> 
>   
> 
>  llvm-build: error: invalid native target: '' (not in project)
> 
> 
> -- Configuring incomplete, errors occurred!
> 
What's happening?

By the way, the directory would be ../../llvm, wouldn't it? I'm in /usr/llvm/build and when I write ../llvm it says: "The source directory /usr/llvm/llvm does not exist" 

Thanks in advance,

Pedro.


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