+#define OPENSSL_MAKE_VERSION(maj,min,fix,patch) ((0x10000000L)+((maj&0xff)<<20)+((min&0xff)<<12)+((fix&0xff)<<4)+patch)
+
+/* use this for #if tests, should never depend upon fix/patch */
+#define OPENSSL_VERSION_AT_LEAST(maj,min) (OPENSSL_MAKE_VERSION(maj,min, 0, 0) >= OPENSSL_VERSION_NUMBER)
+