diff --git a/config.h.in b/config.h.in
new file mode 100644
index 0000000..a00cdbb
--- /dev/null
+++ b/config.h.in
@@ -0,0 +1,25 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* 1 if have the `boost::shared_ptr' class. */
+#undef HAVE_BOOST_SHARED_PTR
+
+/* 1 if have the `std::shared_ptr' class. */
+#undef HAVE_STD_SHARED_PTR
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION