#ifndef unsupported
/* constant table */
-static unsigned int _K[] = { 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6 };
+static const unsigned int _K[] =
+ { 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6 };
#define K(t) _K[(t) / 20]
#define F0(b, c, d) (((b) & (c)) | ((~(b)) & (d)))