Am Thu, 16 May 2019 12:39:02 +0100
schrieb Wei Liu <wei.liu2@citrix.com>:

> autotools shipped in all the distros we care about 

I see autoconf 2.69 is available practically everywhere, starting
with openSUSE 12.2, which was released in Q3 2012. SLE11, which
can not be properly supported anymore, had autoconf 2.63.

Olaf