- if you configure ROOT using “–prefix” you should not define ROOTSYS in advance -> try something like (there should be no need to modify “ld.so.conf” in this case ):
unset ROOTSYS
./configure --prefix=/usr/local --etcdir=/usr/local/etc/root --enable-explicitlink --enable-rpath --enable-soversion --all
make
sudo make install
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see the output of my root-config commands and compare to what you actually set
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If you use “my installation method”, see also:
[url]Updating to new Root versions
[url]Compiling root from source overheats certain computers
[url]Release 5.32.03 on Ubuntu 12.04