Hi Martin, On Mon, Feb 04, 2019 at 12:35:30PM +0100, Martin Marko wrote: > when trying to build GCC 8.2.0 on Red Hat Enterprise Linux Server release 6.9 the component "libgomp" fails with this error: > /home/ gcc-8.2.0-build/./gcc/xgcc: symbol lookup error: /home/gcc-8.2.0-build/./gcc/libgcc_s.so.1: undefined symbol: __s390_indirect_jump_r1use_r14 This sounds like https://gcc.gnu.org/PR84295 (which was fixed a year ago). But apparently it is not exactly the same. Please open a new PR? See https://gcc.gnu.org/bugs.html . Thanks! Segher