diff --git a/.gitignore b/.gitignore
index 87c9e34..ca10712 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@ current_cddlib
 *~
 autom4te.cache/
 bin/
+src/config.*
 config.log
 config.status
 configure
diff --git a/PackageInfo.g b/PackageInfo.g
index bad1683..bb97c47 100644
--- a/PackageInfo.g
+++ b/PackageInfo.g
@@ -10,7 +10,7 @@ SetPackageInfo( rec(
 
 PackageName := "CddInterface",
 Subtitle := "Gap interface to Cdd package",
-Version := "2024.09.01",
+Version := "2024.09.02",
 Date := ~.Version{[ 1 .. 10 ]},
 Date := Concatenation( ~.Date{[ 9, 10 ]}, "/", ~.Date{[ 6, 7 ]}, "/", ~.Date{[ 1 .. 4 ]} ),
 License := "GPL-2.0-or-later",
diff --git a/autogen.sh b/autogen.sh
index 5f12428..efe9b05 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -2,4 +2,4 @@
 #
 # Regenerate configure from configure.ac. Requires GNU autoconf.
 set -ex
-autoconf -Wall -f
+autoreconf -Wall -f
diff --git a/configure.ac b/configure.ac
index f2bb10d..4636a30 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,6 +12,7 @@ AC_PREREQ([2.68])
 AC_INIT([CddInterface], [package])
 AC_CONFIG_SRCDIR([src/CddInterface.c])
 AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_HEADERS([src/config.h])
 m4_include([m4/find_gap.m4])
 
 dnl ##
@@ -62,7 +63,15 @@ old_CPPFLAGS="$CPPFLAGS"
 old_LDFLAGS="$LDFLAGS"
 CPPFLAGS="$CPPFLAGS $CDD_CPPFLAGS"
 LDFLAGS="$LDFLAGS $CDD_LDFLAGS"
-AC_CHECK_HEADER([setoper.h], [], [AC_MSG_ERROR([could not use setoper.h])], [])
+
+AC_CHECK_HEADER(
+  [cddlib/setoper.h],
+  [AC_DEFINE([HAVE_CDDLIB_SETOPER_H], [1], [setting HAVE_CDDLIB_SETOPER_H=1])],
+  [AC_CHECK_HEADER(
+    [setoper.h],
+    [AC_DEFINE([HAVE_CDDLIB_SETOPER_H], [0], [setting HAVE_CDDLIB_SETOPER_H=0])],
+    [AC_MSG_ERROR([could not find setoper.h])])])
+
 AC_CHECK_LIB([cddgmp],[dd_SetLinearity])
 CPPFLAGS="$old_CPPFLAGS"
 LDFLAGS="$old_LDFLAGS"
diff --git a/src/CddInterface.c b/src/CddInterface.c
index ad9e059..d0899cc 100644
--- a/src/CddInterface.c
+++ b/src/CddInterface.c
@@ -3,9 +3,15 @@
  */
 
 #include "compiled.h" // GAP headers
-
-#include "setoper.h"
-#include "cdd.h"
+#include "config.h"
+
+#if HAVE_CDDLIB_SETOPER_H == 1
+#include <cddlib/setoper.h>
+#include <cddlib/cdd.h>
+#else
+#include <setoper.h>
+#include <cdd.h>
+#endif
 
 #include "gmp.h"