Partially revert bc098794: don't require autoconf 2.67
authorAlexander Barton <alex@barton.de>
Sat, 4 Jan 2014 22:12:56 +0000 (23:12 +0100)
committerAlexander Barton <alex@barton.de>
Sat, 4 Jan 2014 22:12:56 +0000 (23:12 +0100)
commit8872653ef6155bdaabd15c62ee67bd23d119305b
treedb4abd416b7127b3e94ca4085aa71b8f3dc970aa
parent4d4512cd726ddec3d9aac7648cca00c59b8adfdf
Partially revert bc098794: don't require autoconf 2.67

GNU autoconf 2.61 is still sufficient to generate the configure script, even
after updating configure.{ng|in}, so don't require a newer version.
configure.ng