Recommended update for llvm7

This update for llvm7 fixes the following issues:

- Enable RTTI (run time type information) by built for LLVM. (bsc#1139584)

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Fixed bugs
bnc#1139584
LLVM8: inconsistent configuration exposed between cmake and llvm-config
Selected Binaries
openSUSE Build Service is sponsored by