On 7 September 2011 15:42, Bruce Hoglund wrote: > > The autoconf version disparity at the top of my > config.log only confirms my suspicions. > " > This file contains any messages produced by compilers while > running configure, to aid debugging if configure makes a mistake. > It was created by configure, which was > generated by GNU Autoconf 2.64. Invocation command line was > " > My autoconf: > " > autoconf --version > autoconf (GNU Autoconf) 2.68 > " Again, this is not a problem. It's telling you the 'configure' script was generated by someone (a GCC developer) who used Autoconf 2.64. Since you are not re-generating the configure script, just running it, your Autoconf version is utterly irrelevant.