configure.in should be renamed to configure.ac, AC_INIT() and AM_INIT_AUTOMAKE() calls

[SDL Bugzilla Import Bot]

This bug report was migrated from our old Bugzilla tracker.

Reported in version: unspecified
Reported for operating system, platform: Linux, x86_64

Comments on the original bug report:

On 2013-10-29 16:37:15 +0000, wrote:

Hi,

NOTE: This applies to all SDL modules and main libraries, only reporting to SDL_net at the moment.

With these versions of the tools:
automake 1.14
autoconf 2.69

I can see the following warnings (separated with empty lines to try to make them more clear), which will make compilations fail with autoconf 2.70 and automake 2.0 in the future [1]. So no hurry, but it will be good to migrate in the next releases.

Hope that helps.

---

aclocal: warning: autoconf input should be named 'configure.ac', not 'configure.in'

libtoolize: putting auxiliary files in .'. libtoolize: copying file ./ltmain.sh'
libtoolize: Consider adding AC_CONFIG_MACRO_DIR([m4])' to configure.in and libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree. libtoolize: Consider adding -I m4' to ACLOCAL_AMFLAGS in Makefile.am.

aclocal: warning: autoconf input should be named 'configure.ac', not 'configure.in'

automake: warning: autoconf input should be named 'configure.ac', not 'configure.in'

configure.in:45: warning: AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
configure.in:45: http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
configure.in:29: installing './compile'

automake: warning: autoconf input should be named 'configure.ac', not 'configure.in'

[1] http://lists.gnu.org/archive/html/automake/2013-06/msg00040.html

The 1.14 release also introduces new (non-fatal) runtime warnings to
simplify the transition to Automake 2.0. You are free to ignore such
warnings for now, but should address them before the transition to
Automake 2.0 (whose ETA is about one year from now, maybe more, so no
need to hurry yet).
[...]

• WARNING: Future backward-incompatibilities!
  [...]

• Automake 2.0 will require Autoconf 2.70 or later (which is still
  unreleased at the moment of writing, but is planned to be released
  before Automake 2.0 is).

• Automake 2.0 will drop support for the long-deprecated 'configure.in'
  name for the Autoconf input file. You are advised to start using the
  recommended name 'configure.ac' instead, ASAP.

[Ozkan Sezer]

These issues have been fixed in git