--- a/configure.in.orig	2013-01-05 10:23:58.000000000 -0800
+++ a/configure.in	2013-01-05 10:25:32.000000000 -0800
@@ -11,11 +11,12 @@
 # WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
-# require autoconf 2.13
-AC_PREREQ(2.13)
+# require autoconf 2.63
+AC_PREREQ(2.63)
 
 # init autoconf (and check for presence fo reconf)
 AC_INIT(reconf)
+AC_CONFIG_MACRO_DIR([m4])
 
 ID3LIB_NAME=id3lib
 
@@ -83,7 +84,7 @@ ID3LIB_FULLNAME=$ID3LIB_NAME-$ID3LIB_VER
 
 AC_SUBST(ID3LIB_FULLNAME)
 
-AM_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADERS([config.h])
 
 AM_INIT_AUTOMAKE($PACKAGE,$VERSION)
 
@@ -168,7 +169,7 @@ if test $has_iconv = 1; then
 		iconv_oldstyle=1, iconv_oldstyle=0)
   if test $iconv_oldstyle = 1; then
     AC_MSG_RESULT(const char **)
-    AC_DEFINE(ID3LIB_ICONV_OLDSTYLE)
+    AC_DEFINE(ID3LIB_ICONV_OLDSTYLE, 1, [Desc])
     #we'll check out the need of
     #typecast in the call of iconv_open
     AC_MSG_CHECKING(whether to typecast in iconv)
@@ -184,7 +185,7 @@ if test $has_iconv = 1; then
                    iconv_cast=0, iconv_cast=1)
     if test $iconv_cast = 1; then
       AC_MSG_RESULT(yes)
-      AC_DEFINE(ID3LIB_ICONV_CAST_OK)
+      AC_DEFINE(ID3LIB_ICONV_CAST_OK, 1, [Desc])
     else
       AC_MSG_RESULT(no)
     fi
@@ -206,7 +207,7 @@ if test $has_iconv = 1; then
                    iconv_cast=0, iconv_cast=1)
     if test $iconv_cast = 1; then
       AC_MSG_RESULT(yes)
-      AC_DEFINE(ID3LIB_ICONV_CAST_OK)
+      AC_DEFINE(ID3LIB_ICONV_CAST_OK, 1, [Desc])
     else
       AC_MSG_RESULT(no)
     fi
@@ -296,12 +297,6 @@ AC_DEFINE_UNQUOTED(_ID3LIB_INTERFACE_AGE
 AC_DEFINE_UNQUOTED(_ID3LIB_BINARY_AGE,            $ID3LIB_BINARY_AGE)
 AC_DEFINE_UNQUOTED(_ID3_COMPILED_WITH_DEBUGGING, "${enable_debug}")
 
-CONDITIONAL_SUBDIRS=
-if test "x$ac_cv_lib_z_uncompress" = "xno"; then
-  CONDITIONAL_SUBDIRS="$CONDITIONAL_SUBDIRS zlib"
-fi
-AC_CONFIG_SUBDIRS(zlib)
-
 CFLAGS="$CFLAGS -Wall"
 
 AC_OUTPUT(                      \
--- a/Makefile.am.orig	2013-01-05 10:25:44.000000000 -0800
+++ a/Makefile.am	2013-01-05 10:26:37.000000000 -0800
@@ -11,6 +11,7 @@
 
 # require automake 1.5
 AUTOMAKE_OPTIONS = 1.5
+ACLOCAL_AMFLAGS = -I m4
 
 EXTRA_DIST =                    \
         HISTORY                 \