On Mon, Dec 10, 2007 at 05:46:30AM +0100, Sebastian Pipping wrote: > I am running Autoconf 2.61a here. I want to add a version > guard to my configure.in and surprisingly adding > > AC_PREREQ(2.61b) > > gives an error (from aclocal already) as expected > but > > AC_PREREQ(2.7) AC_PREREQ uses GNU `strverscmp'-style comparisons. Essentially, the version is two dot-separated integers with an optional trailing letter. Therefore, 2.61 > 2.10 > 2.9 > 2.7. _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf