[fritsch]

The crashlog also, please this is the important one with the gdb backtrace.
GCC 5.2.0 - too much time or what? :-)

Here: [ 44.462581] kodi.bin[525]: segfault at 7fff35b8f1ac ip 00007ff61c323d5d sp 00007fff35b4f028 error 6 in libc-2.21.so[7ff61c2a0000+199000] - that looks like an arch fuckup ... man ... we want to test kodi and not the newest and greatest arch stack :-(

The upgrade procedure for gcc 4.x to 5 is also quite fun. Upgrade
gcc, and then rebuild _everything_ 3~5 times, until there are no
errors left

Did you do this:

fritsch, you essentialy have to rebuild until you don't find any
references to the old libgcc abi in any binary on your system.
And as stuff happily depends on each other, it's quite a few
rounds of rebuilds until that is achived.

And then you still have to deal with the potential breakage the
new gcc version might cause

Edit: All of this makes me think, that I just don't support Arch Linux in this thread - too much pain ...