libevent/libevent — pull request #36 by rctay (2013-01-15 17:29:36+00:00)
Title: (for patches-2.0) workaround for missing AC_PROG_SED, drop to Autoconf 2.59

Backport 9ab2b3f and ad03952, allowing libevent 2.0.x to be build on systems with old Autoconfs (RHEL5, I'm looking at you).