The use of configure.in as Autoconf input has been deprecated for a
very long time in the Autoconf documentation, and the next version of
Autoconf (2.70) will start warning about it ar runtime as well (see
commit 'v2.69-4-g560f16b' or 2012-05-23, "general: deprecate
'configure.in' as autoconf input", in the Autoconf's git repository).
* NEWS (Future backward-incompatibilities): Update.
Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
* WARNING: Future backward-incompatibilities!
+ - Starting from either the next minor version (1.12.2) or the next major
+ version (1.13), Automake will start warning if 'configure.in' is used
+ instead of 'configure.ac' as the Autoconf input. Future versions of
+ Automake will drop support for 'configure.in' altogether.
+
- Autoconf 2.65 or later will be required by the next major Automake
version (1.13). Until now, Automake has required Autoconf version
2.62 or later.