+++ a/configure.in
--- b/configure.in
@@ -36,7 +36,7 @@ 
 AC_INIT([Virtuoso Open Source Edition],
 AC_CONFIG_SRCDIR([libsrc/Dk.h])
 AC_CONFIG_AUX_DIR([binsrc/config])
 AC_CONFIG_MACRO_DIR([binsrc/config])
-AM_CONFIG_HEADER([libsrc/Dk/config.h])
+AC_CONFIG_HEADER([libsrc/Dk/config.h])
 
 dnl
 dnl You may need to change the next macro for older versions of automake: