nmathewson/Libevent — pull request #61 by rosslagerwall (2012-09-03 06:45:07+00:00)
Title: Rename configure.in to configure.ac.

While the build system is being modernized, it is probably a good idea to rename configure.in to the preferred configure.ac.

http://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Writing-Autoconf-Input.html#Writing-Autoconf-Input

http://mail.python.org/pipermail/python-dev/2012-March/117689.html