--- configure.ac~	2007-11-08 00:14:12.000000000 +0300
+++ configure.ac	2010-01-18 18:16:36.845905148 +0300
@@ -40,8 +40,12 @@
 AC_ERLANG_SUBST_INSTALL_LIB_DIR
 AC_ERLANG_CHECK_LIB(kernel)
 AC_ERLANG_CHECK_LIB(stdlib)
+AC_ERLANG_CHECK_LIB(erl_interface)
 AC_ERLANG_LIB_VER(kernel)
 AC_ERLANG_LIB_VER(stdlib)
+AC_ERLANG_LIB_VER(erl_interface)
+
+CFLAGS="${CFLAGS%} -L$ERLANG_LIB_DIR_erl_interface/lib -I$ERLANG_LIB_DIR_erl_interface/include"
 
 AC_CHECK_HEADER([ei.h],,[dnl
     AC_MSG_ERROR([You need the ei.h header])])