https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69709
--- Comment #5 from Dominik Vogt <vogt at linux dot vnet.ibm.com> --- @Matthias: So far it only happens for me when building a gcc rpm from source on a (very slow VM), but not when compiling the same sources. Is there anything special about your build machine or environment on it?