https://bugs.openldap.org/show_bug.cgi?id=9485
--- Comment #4 from sam@gentoo.org --- Gentoo Linux is now using autoconf 2.70+ and other distributions will be soon.
We've applied this straightforward fix: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=219efe93ddac271ee78c2aa....