diff -Naur flac-1.2.1/Makefile.am flac-1.2.1-patched/Makefile.am
--- flac-1.2.1/Makefile.am	2011-02-02 00:07:47.000000000 +0200
+++ flac-1.2.1-patched/Makefile.am	2011-02-02 00:19:28.000000000 +0200
@@ -34,6 +34,8 @@
 
 DISTCLEANFILES = libtool-disable-static
 
+ACLOCAL_AMFLAGS = -I m4
+
 EXTRA_DIST = \
 	COPYING.FDL \
 	COPYING.GPL \