CMake error while making Garfield

Newbie
1

i am trying to install Garfiel++, but when I run cmake i get this error output:

>cmake $GARFIELD_HOME
The CXX compiler identification is GNU 9.3.0
-- The Fortran compiler identification is GNU 9.3.0
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Check for working Fortran compiler: /usr/bin/gfortran
-- Check for working Fortran compiler: /usr/bin/gfortran  -- works
-- Detecting Fortran compiler ABI info
-- Detecting Fortran compiler ABI info - done
-- Checking whether /usr/bin/gfortran supports Fortran 90
-- Checking whether /usr/bin/gfortran supports Fortran 90 -- yes
-- Install path: /opt/applications/garfield/install
-- If you want to change this path call cmake -DCMAKE_INSTALL_PREFIX=my_install_path ...
CMake Error at CMakeLists.txt:71 (find_package):
  By not providing "FindROOT.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "ROOT", but
  CMake did not find one.

  Could not find a package configuration file provided by "ROOT" (requested
  version 6.0) with any of the following names:

    ROOTConfig.cmake
    root-config.cmake

  Add the installation prefix of "ROOT" to CMAKE_PREFIX_PATH or set
  "ROOT_DIR" to a directory containing one of the above files.  If "ROOT"
  provides a separate development package or SDK, be sure it has been
  installed.


-- Configuring incomplete, errors occurred!
See also "/opt/applications/garfield/CMakeFiles/CMakeOutput.log".

ROOTSYS is set when I launch the command and my root version is 6.14, I also tried with another root version that I have installed, which is v.6.22, but I get the same output.

I also tried to follow the suggestion from the log, so I set ROOT_DIR to a directroy containing ROOTConfig.cmake:

export ROOT_DIR=/opt/applications/root_src/installdir/cmake

but when I run cmake again I get exactly the same error

thanks in advance
Lorenzo

2

May be @hschindl can help.

3

Adding @caiazza to the thread…

Did you source the thisroot.sh script before executing the cmake command? Can you attach the CMakeCache.txt file in the build folder?

5

Yes, thisroot.sh is correctly sourced.
And here’s the file:
CMakeCache.txt (17.0 KB)

6

Hi,
what platform are you using?

Perhaps @caiazza or @mato can help?

7

Sourcing thisroot.sh should have defined the variable CMAKE_PREFIX_PATH that should contain the location of your ROOT installation, which is then used by make of Garfield++ to find ROOT.
What is the value of CMAKE_PREFIX_PATH for you?

8

I solved the problem by modifying by hand the file CMakeCache.txt, telling ROOT_DIR where to point, then I had also some problems with file permissions which caused problems.
The complete solution was:
1-checking that $ROOTSYS is correctly pointing to the installation directory of root
2-make sure that the access to $GARFIELD_HOME directory is allowed for every user, not only with root privilege (this is maybe not necessary?)
3-check where $ROOT_DIR is pointing in CMakeCache.txt, and make sure is pointing to a directory where ROOTconfig.cmake is present. The same problem arises for Geant4config.cmake, and the solution is analogous.
Thanks to all of you for your help,
Lorenzo