* m4/init.m4 (AM_INIT_AUTOMAKE): Add `_AM_DEPENDENCIES(OBJC)'
to `AC_PROG_OBJC' if provided, to fix Objective C depmode
handling.
* lib/Automake/Variable.pm (%_ac_macro_for_var): Add entries for
OBJC and OBJCFLAGS.
* tests/ext.test: Adjust.
* tests/objc.test, tests/objc2.test: New tests.
* tests/Makefile.am: Adjust.
* doc/automake.texi (Objective C Support): New node.
(Support for Other Languages): Adjust.
* NEWS: Update.