Autoconf 2.65 is almost three years old now, so requiring it is acceptable. Also, the soon-to-appear support for Objective C++ in Automake will be simplified if we can assume that Autoconf version (which is the one that introduced support for Objective C++).
* NEWS (Planned future backward-incompatibilities): Automake 1.13 will require Autoconf 2.65 or later. Signed-off-by: Stefano Lattarini <stefano.lattar...@gmail.com> --- NEWS | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/NEWS b/NEWS index 7d64c0b..f2181f6 100644 --- a/NEWS +++ b/NEWS @@ -2,6 +2,10 @@ New in 1.12.1: * WARNING: Future backward-incompatibilities! + - Autoconf 2.65 or later will be required by the next major Automake + version (1.13). Until now, Automake has been working with any + Autoconf version up to 2.62. + - Starting from the next major Automake version (1.13), the rules to build pdf, ps and dvi output from Texinfo input will use the '--tidy' option by default. Since such an option was introduced in Texinfo -- 1.7.9.5