static void md2_block(MD2_CTX *c, const unsigned char *d);
/* The magic S table - I have converted it to hex since it is
* basically just a random byte string. */
-static MD2_INT S[256]={
+static const MD2_INT S[256]={
0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01,
0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13,
0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C,