Re: About the "libCore.so not found" saga

Hi Jacques,

  it is either using --prefix or using ROOTSYS, not both. The prefix option is only for people who want to install ROOT as a system component, integrated with adding <prefixdir>/root/lib to /etc/ld.so.conf. In the case of prefix we don't check ROOTSYS but the <prefixdir> derived location. What you want it just:

cd ~/root
./configure
make
export ROOTSYS=~/root

For more see http://root.cern.ch/drupal/content/installing-root-source

Cheers, Fons.

On 03/09/2010 14:16, Jacques Goldberg wrote:
>
> Yesterday evening I have downloaded and installed the current (recommended)
> dev version tarball - on a Fedora 12 x86_64 system.
> I selected to use --prefix=/usr/local and no other configure options.
> It went smooth until after getting the splash image upon the first root
> command: libCore.so not found.
> I read the saga and immediately started enjoying root (not my first time),
> after setting the right path for LD_LIBRARY_PATH as detected by
> updatedb/locate (see below).
>
> Today I wanted to understand a bit better and I observe something strange,
> probably a bug which some people, not me, might qualify "stupid" (my own
> bugs only are stupid).
>
> When I echoed $ROOTSYS I got /usr/local/root which contained .... nothing!
> I then did updatedb followed by locate libCore.so which found the file at
> /usr/local/lib/root while the program looks for it at /usr/local/root/lib
> Just likewise, the include files are at /usr/local/include/root
>
> I am not sure if this is a bug and even less THE bug but I nevertheless
> suggest to check lines 5466 through 5468
> 5465 if test "x$prefix" = "x"; then prefix=/usr/local; fi
> 5466 if test "x$bindir" = "x"; then bindir=$prefix/bin; fi
> 5467 if test "x$libdir" = "x"; then libdir=$prefix/lib/root; fi
> 5468 if test "x$incdir" = "x"; then incdir=$prefix/include/root; fi
> in file root/configure (root being here the unpacked directory), as well as
> the explanation in lines:
> 1143 --incdir Header installation dir (<prefix>/include/root)
> 1144 --libdir Library installation dir (<prefix>/lib/root)
>
> In any case, clearly these lines are not compatible with the ROOTSYS based
> design.
>
> Jacques
>

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