diff --git a/configure.ac b/configure.ac
index 3dee1952da..a74a7981bf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -225,15 +225,14 @@ GP_VA_COPY
 
 
 dnl check for/set up libtool and libltdl
-dnl AC_DISABLE_STATIC
-dnl AC_DISABLE_SHARED
-dnl AC_LIBLTDL_CONVENIENCE([libltdl])
-dnl AC_WITH_LTDL
-dnl AC_LIB_LTDL
-AC_DISABLE_STATIC 
-AC_LIBTOOL_WIN32_DLL
-AC_LIBTOOL_DLOPEN
-AC_PROG_LIBTOOL
+LT_PREREQ([2.4.2])
+dnl Disable building static library, as no one uses it anyway.
+LT_INIT([
+  disable-static
+  dlopen
+  win32-dll
+])
+dnl LTDL_INIT([external])
 
 dnl We are using our own libltdl checks instead of AC_WITH_LTDL
 dnl because we do not want to ship our own copy of libltdl.
diff --git a/libgphoto2_port/configure.ac b/libgphoto2_port/configure.ac
index 4ab6535895..9c7536354f 100644
--- a/libgphoto2_port/configure.ac
+++ b/libgphoto2_port/configure.ac
@@ -78,16 +78,14 @@ AM_PROG_AR
 
 
 dnl check for/set up libtool and libltdl
-dnl AC_DISABLE_STATIC
-dnl AC_DISABLE_SHARED
-dnl AC_LIBLTDL_CONVENIENCE([libltdl])
-dnl AC_WITH_LTDL
-dnl AC_LIB_LTDL
+LT_PREREQ([2.4.2])
 dnl Disable building static library, as no one uses it anyway.
-AC_DISABLE_STATIC
-AC_LIBTOOL_WIN32_DLL
-AC_LIBTOOL_DLOPEN
-AC_PROG_LIBTOOL
+LT_INIT([
+  disable-static
+  dlopen
+  win32-dll
+])
+dnl LTDL_INIT([external])
 
 dnl We are using our own libltdl checks instead of AC_WITH_LTDL
 dnl because we do not want to ship our own copy of libltdl.