--- configure.ac~	2017-01-29 06:39:10.000000000 +0000
+++ configure.ac	2017-01-29 06:40:04.816206357 +0000
@@ -10,6 +10,7 @@
 AC_SUBST(AUDIOFILE_VERSION_INFO)
 
 AM_INIT_AUTOMAKE
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADER([config.h])
 
 dnl Checks for programs.