[llvm-dev] llvm-6.0.0rc2: fatal error: clang/Basic/Version.h: No such file or directory

[Dimitry Andric via llvm-dev]

On 15 Feb 2018, at 15:45, Siegmar Gross via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> today I've tried to build llvm-6.0.0rc2 using Cmake on my "SUSE Linux
> Enterprise Server 12.3 (x86_64)" with the following commands (gcc-6.4.0
> is necessary for CUDA-9.0).
> 
> 
> wget http://prereleases.llvm.org/6.0.0/rc2/llvm-6.0.0rc2.src.tar.xz
> wget http://prereleases.llvm.org/6.0.0/rc2/cfe-6.0.0rc2.src.tar.xz
> wget http://prereleases.llvm.org/6.0.0/rc2/clang-tools-extra-6.0.0rc2.src.tar.xz
> wget http://prereleases.llvm.org/6.0.0/rc2/compiler-rt-6.0.0rc2.src.tar.xz
> wget http://prereleases.llvm.org/6.0.0/rc2/lldb-6.0.0rc2.src.tar.xz
> wget http://prereleases.llvm.org/6.0.0/rc2/lld-6.0.0rc2.src.tar.xz
> wget http://prereleases.llvm.org/6.0.0/rc2/polly-6.0.0rc2.src.tar.xz
> wget http://prereleases.llvm.org/6.0.0/rc2/openmp-6.0.0rc2.src.tar.xz
> 
> 
> tar xf llvm-6.0.0rc2.src.tar.xz
> cd llvm-6.0.0rc2.src/tools
> tar xf ../../cfe-6.0.0rc2.src.tar.xz
> tar xf ../../polly-6.0.0rc2.src.tar.xz
> tar xf ../../lldb-6.0.0rc2.src.tar.xz
> tar xf ../../lld-6.0.0rc2.src.tar.xz
> cd cfe-6.0.0rc2.src/tools
> tar xf ../../../../clang-tools-extra-6.0.0rc2.src.tar.xz
> cd ../../../projects
> tar xf ../../compiler-rt-6.0.0rc2.src.tar.xz
> tar xf ../../openmp-6.0.0rc2.src.tar.xz
> cd ../..

After this, the directory names will not be correct, unfortunately.  You'll need to do this instead:

tar xf llvm-6.0.0rc2.src.tar.xz
tar xf cfe-6.0.0rc2.src.tar.xz
tar xf polly-6.0.0rc2.src.tar.xz
tar xf lldb-6.0.0rc2.src.tar.xz
tar xf lld-6.0.0rc2.src.tar.xz
tar xf clang-tools-extra-6.0.0rc2.src.tar.xz
tar xf compiler-rt-6.0.0rc2.src.tar.xz
tar xf openmp-6.0.0rc2.src.tar.xz

mv cfe-6.0.0rc2.src                     llvm-6.0.0rc2.src/tools/clang
mv polly-6.0.0rc2.src                   llvm-6.0.0rc2.src/tools/polly
mv lldb-6.0.0rc2.src                    llvm-6.0.0rc2.src/tools/lldb
mv lld-6.0.0rc2.src                     llvm-6.0.0rc2.src/tools/lld
mv clang-tools-extra-6.0.0rc2.src       llvm-6.0.0rc2.src/tools/clang/tools/extra
mv compiler-rt-6.0.0rc2.src             llvm-6.0.0rc2.src/projects/compiler-rt
mv openmp-6.0.0rc2.src                  llvm-6.0.0rc2.src/projects/openmp

I think it might be better to distribute the source tarballs all rooted at llvm-6.0.0rc2, with the correct subpaths already embedded.  Hans, what are your thoughts about that?

Hopefully this will become moot at some point, if the monorepo ever gets off the ground...

-Dimitry

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