I have upgraded one of my systems from Ubuntu 16.04 to 16.10. Now `make bootstrap' fails on master with --8<---------------cut here---------------start------------->8--- Finding pointers to doc strings... Finding pointers to doc strings...done Dumping under the name emacs 21680640 of 33554432 static heap bytes used Makefile:749: recipe for target 'bootstrap-emacs' failed make[1]: *** [bootstrap-emacs] Segmentation fault (core dumped) --8<---------------cut here---------------end--------------->8--- One possible reason could be, that gcc has been upgraded from "gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2)" to "gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12)" I am appending config.log Best regards, Michael.