diff --git a/lib/hx509/crypto_headers.h b/lib/hx509/crypto_headers.h
new file mode 100644
index 000000000..958681ad4
--- /dev/null
+++ b/lib/hx509/crypto_headers.h
@@ -0,0 +1,33 @@
+/*
+ * $Id$
+ */
+
+#ifdef HAVE_OPENSSL
+
+#include <openssl/rsa.h>
+#include <openssl/dsa.h>
+#include <openssl/err.h>
+#include <openssl/sha.h>
+#include <openssl/md5.h>
+#include <openssl/md2.h>
+#include <openssl/pem.h>
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/ui.h>
+#include <openssl/pkcs12.h>
+
+#else
+
+#include <rsa.h>
+#include <dsa.h>
+#include <sha.h>
+#include <md5.h>
+#include <md2.h>
+#include <evp.h>
+#include <rand.h>
+#include <ui.h>
+#include <engine.h>
+
+#endif