diff --git a/configure.ac b/configure.ac
index 423234091aaa1f2f02e3217f7bde635e9687d6a7..98b64a773783706e76f2e52aa5a04511840fdd08 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,6 +4,9 @@
 #  autoconf 2.69
 #  libtool  2.4.6
 
+AC_PREREQ([2.69])
+LT_PREREQ([2.4.6])
+
 AC_INIT([cdi], [1.8.3rc], [http://mpimet.mpg.de/cdi])
 
 AC_DEFINE_UNQUOTED(CDI, ["$PACKAGE_VERSION"], [CDI version])
diff --git a/patch/ltmain_sh.patch b/patch/ltmain_sh.patch
index 08b8db047dd712091bcd1997ac2792f86f1e1c9b..3e4e25cfe80c2439123e251d1143f991f12851dd 100644
--- a/patch/ltmain_sh.patch
+++ b/patch/ltmain_sh.patch
@@ -1,8 +1,8 @@
 diff --git a/config/ltmain.sh b/config/ltmain.sh
-index 857338f..c19bbcc 100644
+index 0f0a2da..4126a5b 100644
 --- a/config/ltmain.sh
 +++ b/config/ltmain.sh
-@@ -8078,6 +8078,14 @@ func_mode_link ()
+@@ -7859,6 +7859,14 @@ func_mode_link ()
  	# Read the .la file
  	func_source "$lib"