From: "edelsohn (David Edelsohn)" Date: 2013-03-29T00:09:25+09:00 Subject: [ruby-core:53807] [ruby-trunk - Bug #8179] configure.in requires newer Autoconf than specified by AC_PREREQ Issue #8179 has been updated by edelsohn (David Edelsohn). With Autoconf-2.64 I receive the following error: configure:1510: error: possibly undefined macro: _m4_text_wrap_word If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. Autoconf-2.69 works. ---------------------------------------- Bug #8179: configure.in requires newer Autoconf than specified by AC_PREREQ https://bugs.ruby-lang.org/issues/8179#change-38008 Author: edelsohn (David Edelsohn) Status: Feedback Priority: Normal Assignee: Category: Target version: ruby -v: trunk configure.in states AC_PREREQ(2.62) but building with Autoconf-2.64 fails due to missing feature. configure in releases are created using Autoconf-2.69 and that worked on trunk. I do not know the absolute minimum requirement, but 2.62 no longer is correct. -- http://bugs.ruby-lang.org/