diff -r a38e6916504c -r e135ccae6783 ext/ezmlm/hash/hash.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ext/ezmlm/hash/hash.h	Fri May 12 16:17:41 2017 -0700
@@ -0,0 +1,46 @@
+
+#include <ruby.h>
+
+static VALUE rb_mEzmlm;
+static VALUE rb_cEZHash;
+
+
+#ifndef SURF_H
+#define SURF_H
+
+#define ROTATE(x,b) (((x) << (b)) | ((x) >> (32 - (b))))
+#define MUSH(i,b) x = t[i] += (((x ^ seed[i]) + sum) ^ ROTATE(x,b));
+
+typedef struct {
+	unsigned int seed[32];
+	unsigned int sum[8];
+	unsigned int out[8];
+	unsigned int in[12];
+	int todo;
+} surfpcs;
+
+static const unsigned int littleendian[8] = {
+  0x03020100, 0x07060504, 0x0b0a0908, 0x0f0e0d0c,
+  0x13121110, 0x17161514, 0x1b1a1918, 0x1f1e1d1c
+} ;
+#define end ((unsigned char *) &littleendian)
+#define data ((unsigned char *) s->in)
+#define outdata ((unsigned char *) s->out)
+
+extern void surf( unsigned int out[8], const unsigned int in[12], const unsigned int seed[32] );
+extern void surfpcs_init( surfpcs *s, const unsigned int k[32] );
+extern void surfpcs_add( surfpcs *s, const char *x,unsigned int n );
+extern void surfpcs_addlc( surfpcs *s, const char *x,unsigned int n );
+extern void surfpcs_out( surfpcs *s, unsigned char h[32] );
+#endif
+
+
+#ifndef SUBHASH_H
+#define SUBHASH_H
+
+unsigned int subhashs(const char *s);
+unsigned int subhashb(const char *s,long len);
+#define subhashsa(SA) subhashb((SA)->s,(SA)->len)
+
+#endif
+