Building ROOT: Difference between revisions
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sudo python3 -m pip install numpy | sudo python3 -m pip install numpy | ||
# clone the repository | # clone the repository and select version | ||
git clone http://github.com/root-project/root.git | git clone http://github.com/root-project/root.git | ||
cd root | cd root | ||
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#build and install | #build and install | ||
sudo cmake3 --build . --target install -- -j4 | sudo cmake3 --build . --target install -- -j4 | ||
</syntaxhighlight> | |||
Remember to add root details to your environment, e.g. /etc/bashrc: | |||
(LD_LIBRARY_PATH and PYTHONPATH must BOTH be set for pyroot to work) | |||
<syntaxhighlight lang="bash"> | |||
export ROOTSYS=/opt/root | |||
source $ROOTSYS/bin/thisroot.sh | |||
export LD_LIBRARY_PATH=/opt/root/lib:$LD_LIBRARY_PATH | |||
export PYTHONPATH=/opt/root/lib:$PYTHONPATH | |||
</syntaxhighlight> | </syntaxhighlight> | ||
Revision as of 08:21, 18 February 2020
Main Page -> Control & Readout Software Documentation and Howto's -> Building ROOT
In the pCT project we need to use a version of ROOT which is compiled with c++17 in order to build packages with ROOT dependencies with c++17 standard. .
ROOT implements a custom adaptor to std::string_view if not compiled with c++17 and this conflicts with the real one if a packages uses c++17 standard and ROOT libraries/includes.
sudo yum install git cmake gcc-c++ gcc binutils \
libX11-devel libXpm-devel libXft-devel libXext-devel \
gcc-gfortran openssl-devel pcre-devel \
mesa-libGL-devel mesa-libGLU-devel glew-devel ftgl-devel mysql-devel \
fftw-devel cfitsio-devel graphviz-devel \
avahi-compat-libdns_sd-devel libldap-dev python-devel \
libxml2-devel gsl-static gsl-devel \
libAfterImage libAfterImage-devel
sudo python3 -m pip install numpy
# clone the repository and select version
git clone http://github.com/root-project/root.git
cd root
git checkout v6-20-00-rc1
# choose a build directory
mkdir build_root; cd build_root
scl enable devtoolset-8 bash
# configure: choose install target, on the lab machine we need to disable asimage for some reason
# the important flag is the C++ standard
cmake3 -DCMAKE_INSTALL_PREFIX=/opt/root -DCMAKE_CXX_STANDARD=17 -DPYTHON_EXECUTABLE=/usr/bin/python3 ../
#build and install
sudo cmake3 --build . --target install -- -j4
Remember to add root details to your environment, e.g. /etc/bashrc: (LD_LIBRARY_PATH and PYTHONPATH must BOTH be set for pyroot to work)
export ROOTSYS=/opt/root
source $ROOTSYS/bin/thisroot.sh
export LD_LIBRARY_PATH=/opt/root/lib:$LD_LIBRARY_PATH
export PYTHONPATH=/opt/root/lib:$PYTHONPATH