We've been carrying this patch in Fedora for a few years.
Patch By: Dan Horák
|  Differential  D50546  
CMake: Fix native arch selection on s390 (32-bit) Authored by tstellar on Aug 9 2018, 6:32 PM. 
Details 
Diff Detail 
 Event TimelineComment Actions Why? The SystemZ back-end doesn't support 32-bit code generation anyway, so there is no native LLVM support on s390 ... |