Comment # 7 on bug 1065464 from Michal Srb

First of all, the whole purpose of ICDs is to give multiple drivers the ability
to coexist on the same system and the applications a method of enumerating them
and choosing one. So making the packages providing ICDs conflict with each
other would defeat their purpose.

Secondly, making llvm static would have big negative impact on the
distribution. It is against our guidelines
(https://en.opensuse.org/openSUSE:Packaging_guidelines#Static_Libraries), which
exist for good reasons. Building it statically would mean that every package
that uses it would have to be rebuild and retested every time llvm changes. It
would also increase the resources used for building llvm and all packages that
use it. Building llvm already takes lot of resources and puts stress on our
build service. I have spent last two months optimizing the llvm build to get it
to at least acceptable levels.

Note that we have never distributed llvm static libraries. The recent changes
in the package only changed how we get rid of them during build.

So I consider switching llvm to static as the last resort if there is no other
solution.

I have reproduced this bug and analyzed it. The issue is not that libLLVM.so is
loaded twice, but that Mesa loads libLLVM.so.5 while pocl loads libLLVM.so.4.
That is the thing that recently changed - we have introduced llvm 5 and made it
the default. Mesa was rebuilt against llvm 5, but pocl was not. It is because
we have pocl version 0.14 that supports at most llvm 4.

I have updated pocl to version 1.0 (which supports llvm 5) and rebuilt it with
llvm 5. It seems to solve the issue. I will double check it and if it is
correct, submit the updated pocl.