diff --git a/include/openssl/mirdef.h b/include/openssl/mirdef.h
new file mode 100644
index 00000000..80cddc94
--- /dev/null
+++ b/include/openssl/mirdef.h
@@ -0,0 +1,30 @@
+/* 
+ *   MIRACL compiler/hardware definitions - mirdef.h
+ *   This version suitable for use with most 32-bit computers
+ *   e.g. 80386+ PC, VAX, ARM etc. Assembly language versions of muldiv,
+ *   muldvm, muldvd and muldvd2 will be necessary. See mrmuldv.any 
+ *
+ *   Also suitable for DJGPP GNU C Compiler
+ *   ... but change __int64 to long long
+ */
+
+#define MIRACL 32
+#define MR_LITTLE_ENDIAN    /* This may need to be changed        */
+#define mr_utype int
+                            /* the underlying type is usually int *
+                             * but see mrmuldv.any                */
+#define mr_unsign32 unsigned int
+                            /* 32 bit unsigned type               */
+#define MR_IBITS      32    /* bits in int  */
+#define MR_LBITS      32    /* bits in long */
+#define MR_FLASH      52      
+                            /* delete this definition if integer  *
+                             * only version of MIRACL required    */
+                            /* Number of bits per double mantissa */
+
+#define mr_dltype __int64   /* ... or long long for Unix/Linux */
+#define mr_unsign64 unsigned __int64
+
+#define MAXBASE ((mr_small)1<<(MIRACL-1))
+
+