On 08/29/2017 11:17 AM, Strates, Jimmy wrote: > > I seem to have an issue with my computer; this almost positively isn’t a bug > in autoconf, but I can’t find the source. > > I am using a Mac and installing packages through MacPorts; the other day, > every package that used an autoconf configure script started segfaulting > while “checking for suffix of executables…”. I’ve completely uninstalled > everything in MacPorts and MacPorts, reinstalled MacPorts, and the problem > persists. > > I downloaded the autoconf 2.69 tarball (MacPorts is using autoconf 2.69) and > ran the test suite with the MacPorts autoconf. The results were concerning…
Let's look at some of those failures: > ## ---------------------- ## > ## Detailed failed tests. ## > ## ---------------------- ## > > # -*- compilation -*- > 1. tools.at:46: testing Syntax of the shell scripts ... > ./tools.at:48: test "$ac_cv_sh_n_works" = yes || exit 77 > ./tools.at:53: /bin/sh -n "$abs_top_builddir/bin/autoconf" > stderr: > ./tools.at:54: /bin/sh -n "$abs_top_builddir/tests/autoconf" > stderr: > /bin/sh: can't open input file: /tmp/autoconf-2.69/tests/autoconf > ./tools.at:54: exit code was 127, expected 0 > 1. tools.at:46: 1. Syntax of the shell scripts (tools.at:46): FAILED > (tools.at:54) This says your system was unable to run a shell script that should have just been created. > > # -*- compilation -*- > 24. tools.at:879: testing autoupdating AU_ALIAS ... > ./tools.at:892: autoupdate > ./tools.at:893: autoconf --force > ./tools.at:893: /bin/sh -n configure > stderr: > ./tools.at:893: exit code was 139, expected 0 > 24. tools.at:879: 24. autoupdating AU_ALIAS (tools.at:879): FAILED > (tools.at:893) Even more worrisome, this says /bin/sh dumped core when trying to analyze whether a 'configure' script had any syntax errors. Are you sure you haven't corrupted /bin/sh? If you can't trust /bin/sh to not dump core, there's not much autoconf can do; conversely, if we can isolate exactly what bug we are tickling in /bin/sh, it may be possible to tweak autoconf to avoid generating shell scripts that tickle that pattern. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
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