https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83651
--- Comment #5 from Aldy Hernandez <aldyh at gcc dot gnu.org> --- (In reply to Arnd Bergmann from comment #4) > I'd suggest sticking with the libressl test case from comment 1, and > ignoring the kernel version until the libressl one is fully understood. It > seems very likely that fixing one will also address the other. Alright, let's start with libressl which is user-space. > Are you able to start with the test procedure from comment 1, or do you need > something that can be scripted better, e.g. in a single C file? abulafia:/tmp/portable [master]$ ./autogen.sh pulling upstream openbsd source Cloning into 'openbsd'... ... copying manpages configure.ac:32: error: possibly undefined macro: AC_PROG_LIBTOOL If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. autoreconf: /usr/bin/autoconf failed with exit status: 1 Perhaps this is sensitive to the autoconf version. I am running 2.69 on Fedora 27. But I think a single C file would be easier. Everyone's running a different (probably Linux) OS variant around here. Thanks.