Issue building with cmake


_ROOT Version: 6.10.08
_Platform: Scientific Linux 6.10 (Carbon)
_Compiler: gcc/gcc-c++/cmake


Hi,

I am trying to compile root on a personal server. As far as I can tell, I have all the necessary prerequisites already installed. However, I was not able to ‘sudo yum install cmake’ beyond version 2.8, and so followed these examples to get above cmake version 3.4 to build root:

With this, I should have cmake version 3.6.2; this should work, right?

After I clone from the git repository and checkout branch v6-10-08, I cd back to my build directory and attempt to use cmake:

$ cmake …/root/
– Found GCC. Major version 4, minor version 4
– Found a 64bit system
– Found GNU compiler collection
– ROOT Platform: linux
– ROOT Architecture: linuxx8664gcc
– Build Type: RelWithDebInfo
– Compiler Flags: -pipe -m64 -Wshadow -Wall -W -Woverloaded-virtual -fsigned-char -fPIC -pthread -O2 -g -DNDEBUG
– Looking for ZLib
– Looking for Freetype
– Building pcre version 8.37 included in ROOT itself
– Building LZMA version 5.2.1 included in ROOT itself
– Building LZ4 version v1.7.5 included in ROOT itself
– Looking for X11
– Could NOT find GIF (missing: GIF_LIBRARY GIF_INCLUDE_DIR)
– Could NOT find TIFF (missing: TIFF_LIBRARY TIFF_INCLUDE_DIR)
– Building AfterImage library included in ROOT itself
– Looking for Python
– Found Python interpreter version 2.6
– Looking for OpenGL
– Looking for BLAS for optional parts of TMVA
– A library with BLAS API not found. Please specify library location.
– Enabled support for: asimage astiff builtin_afterimage builtin_ftgl builtin_gl2ps builtin_glew builtin_llvm builtin_lzma builtin_lz4 builtin_pcre builtin_tbb builtin_unuran cling exceptions explicitlink gdml genvector http imt opengl pch python roofit shared thread tmva x11 xft
CMake Error at interpreter/llvm/src/cmake/modules/CheckAtomic.cmake:52 (message):
Host compiler appears to require libatomic, but cannot find it.
Call Stack (most recent call first):
interpreter/llvm/src/cmake/config-ix.cmake:317 (include)
interpreter/llvm/src/CMakeLists.txt:459 (include)

– Configuring incomplete, errors occurred!
See also “/home/jbarrow3/buildroot/CMakeFiles/CMakeOutput.log”.
See also “/home/jbarrow3/buildroot/CMakeFiles/CMakeError.log”.

Of course, when I attempt to build, nothing happens:

cmake --build .
gmake: *** No targets specified and no makefile found. Stop.

Suggestions?

You will need a compiler with support for C++11 to build ROOT, and GCC 4.4 is too old for that. You need at least GCC 4.8.1, but preferably GCC 4.8.5 or newer, since 4.8.5 is what we test with in Jenkins. Are you stuck to SLC6? It would be much easier if you could use CentOS 7 instead.

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