https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269
--- Comment #5 from stli at linux dot ibm.com <stli at linux dot ibm.com> --- Just as information, I've just committed this glibc patch: "s390x: Require GCC 7.1 or later to build glibc." https://sourceware.org/git/?p=glibc.git;a=commit;h=844b4d8b4b937fe6943d2c0c80ce7d871cdb1eb5
