Makefile.am: require automake 1.9

With heavy use of conditionals, I broke Makefile.am for the ancient
automake version 1.6.  Instead of supporting this automake version
forever, I'm removing support for it now.  Since automake isn't
required on the build machine, nobody should have a serious problem
with that.

Makefile.am

@@ -1,5 +1,5 @@
 ACLOCAL_AMFLAGS = -I m4
-AUTOMAKE_OPTIONS = foreign 1.6
+AUTOMAKE_OPTIONS = foreign 1.9 dist-bzip2
 
 SUBDIRS = src doc
 docs = README UPGRADING

autogen.sh

@@ -16,7 +16,7 @@ if test -n "$AM_FORCE_VERSION"
 then
 	AM_VERSIONS="$AM_FORCE_VERSION"
 else
-	AM_VERSIONS='1.6 1.7 1.8 1.9'
+	AM_VERSIONS='1.9 1.10'
 fi
 if test -n "$AC_FORCE_VERSION"
 then

configure.ac

@@ -3,7 +3,7 @@ dnl AM_INIT_AUTOMAKE(mpd, 0.14.0)
 
 AC_PREREQ(2.60)
 AC_INIT(mpd, 0.14.0, musicpd-dev-team@lists.sourceforge.net)
-AM_INIT_AUTOMAKE($PACKAGE_NAME, $PACKAGE_VERSION)
+AM_INIT_AUTOMAKE([foreign 1.9 dist-bzip2])
 AC_CONFIG_MACRO_DIR([m4])
 
 AC_SUBST(MPD_LIBS)