Error linking against binary disrtibution of root

[YannBedfer]

Hello,
Trying to build link my software (happens to be garfield) against ROOT taken from a binary distribution (https://root.cern/download/root_v6.16.00.Linux-ubuntu16-x86_64-gcc5.4.tar.gz), I get the following:

make[2]: *** No rule to make target '/mnt/build/ws/BUILDTYPE/Release/LABEL/ROOT-ubuntu16/build/lib/libtbb.so', needed by 'lib/libGarfield.so.0.2.0'.  Stop.

The origin of which is the following entry in the ROOT binary distribution:

./cmake/ROOTConfig-targets.cmake:  INTERFACE_LINK_LIBRARIES "ROOT::Core;ROOT::Thread;/mnt/build/ws/BUILDTYPE/Release/LABEL/ROOT-ubuntu16/build/lib/libtbb.so

I think I managed to work around the problem, by editing the so many makefiles produced by my cmake (or so I think: I haven’t checked execution-time behaviour).

…But what is the recommended procedure in such a case? Would it make sense to modify the files in “./cmake” directory of the distribution, so that they do not refer to “/mnt/build/ws/BUILDTYPE/Release”? Or is there something else one can do?

Yann

---

ROOT Version: 6.16
Platform: ubuntu 16.04
Compiler: 5.4

---

[Wile_E_Coyote]

Well, your binary ROOT distribution does contain “${ROOTSYS}/lib/libtbb.so”.
You could try to additionally install the one from the operating system:

sudo apt-get install libtbb-dev

[YannBedfer]

OK.

But why is there this reference to “mnt/build/…etc…” in “$ROOTSYS/cmake/ROOTConfig-targets.cmake”?

Why not instead “/usr/lib/x86_64-linux-gnu/libtbb.so”?

Or even better “$ROOTSYS/lib/libtbb.so”?

That would make things simpler, wouldn’t it?

[Wile_E_Coyote]

I think that binary ROOT distributions provide a “builtin_tbb” (see root-config --features).

@Axel So, it seems to me that it is a bug that it tries to access “/mnt/build/ws/...” (I assume it is the original place where the ROOT was built).

[amadio]

Indeed, this is a problem with ROOT. No CMake file should point to things in the build directory.
This has actually already been reported as ROOT-10030.