https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79358
--- Comment #2 from Andreas Krebbel <krebbel at gcc dot gnu.org> --- The reduced testcase fails with -m31 and -m64 but the original probably only with -m31 - right?! Looks like the following Glibc problem which has been fixed a while ago: commit 26011b5cfa6a1a8d8005d65f11d97498444a4e95 2014-03-24 Stefan Liebler <s...@linux.vnet.ibm.com> [BZ #16712] * sysdeps/s390/s390-32/bits/wordsize.h (__WORDSIZE32_SIZE_ULONG): New define. * sysdeps/s390/s390-64/bits/wordsize.h (__WORDSIZE32_SIZE_ULONG): Likewise. * sysdeps/generic/stdint.h (SIZE_MAX): Define as UL if __WORDSIZE32_SIZE_ULONG.