--- configure.in	2008-05-07 10:51:15.000000000 -0700
+++ configure.in	2008-11-20 20:40:14.546875000 -0800
@@ -64,7 +64,6 @@
 
 dnl Some more checks for Win32
 AC_CYGWIN
-AC_LIBTOOL_WIN32_DLL
 
 AC_PROG_INSTALL
 AC_PROG_CC
@@ -79,8 +78,7 @@
 # for per-target cflags in the libguile subdir
 AM_PROG_CC_C_O
 
-AC_LIBTOOL_DLOPEN
-AC_PROG_LIBTOOL
+LT_INIT([dlopen win32-dll])
 AC_CHECK_LIB([ltdl], [lt_dlinit], ,
   [AC_MSG_ERROR([libltdl not found.  See README.])])