wterl/c_src/wiredtiger-build.patch

diff --git a/ext/compressors/snappy/Makefile.am b/ext/compressors/snappy/Makefile.am
index 6d78823..2122cf8 100644
--- a/ext/compressors/snappy/Makefile.am
+++ b/ext/compressors/snappy/Makefile.am
@@ -2,5 +2,6 @@ AM_CPPFLAGS = -I$(top_builddir) -I$(top_srcdir)/src/include

 lib_LTLIBRARIES = libwiredtiger_snappy.la
 libwiredtiger_snappy_la_SOURCES = snappy_compress.c
-libwiredtiger_snappy_la_LDFLAGS = -avoid-version -module
+libwiredtiger_snappy_la_CFLAGS = -I$(abs_top_builddir)/../../system/include
+libwiredtiger_snappy_la_LDFLAGS = -avoid-version -module -L$(abs_top_builddir)/../../system/lib -Wl,-rpath,lib/wterl-0.9.0/priv:lib/wterl/priv:priv
 libwiredtiger_snappy_la_LIBADD = -lsnappy
diff --git a/src/support/cksum.c b/src/support/cksum.c
index 7e9befe..b924db7 100644
--- a/src/support/cksum.c
+++ b/src/support/cksum.c
@@ -27,6 +27,13 @@

 #include "wt_internal.h"

+#if defined(__amd64) || defined(__x86_64)
+#define USE_HARDWARE_CRC32 1
+#else
+#undef USE_HARDWARE_CRC32
+#endif
+
+#ifdef USE_HARDWARE_CRC32
 static const uint32_t g_crc_slicing[8][256] = {
 #ifdef WORDS_BIGENDIAN
 	/*
@@ -1078,6 +1085,7 @@ static const uint32_t g_crc_slicing[8][256] = {
 	}
 #endif
 };
+#endif /* USE_HARDWARE_CRC32 */

 /*
  * __wt_cksum --
@@ -1106,15 +1114,29 @@ __wt_cksum(const void *chunk, size_t len)
 	/* Checksum one byte at a time to the first 4B boundary. */
 	for (p = chunk;
 	    ((uintptr_t)p & (sizeof(uint32_t) - 1)) != 0 &&
-	    len > 0; ++p, --len)
+	    len > 0; ++p, --len) {
+#ifdef USE_HARDWARE_CRC32
+	    __asm__ __volatile__(
+		".byte 0xF2, 0x0F, 0x38, 0xF0, 0xF1"
+		: "=S" (crc)
+		: "0" (crc), "c" (*p));
+#else
 #ifdef WORDS_BIGENDIAN
 		crc = g_crc_slicing[0][((crc >> 24) ^ *p) & 0xFF] ^ (crc << 8);
 #else
 		crc = g_crc_slicing[0][(crc ^ *p) & 0xFF] ^ (crc >> 8);
 #endif
+#endif
+	}

 	/* Checksum in 8B chunks. */
 	for (nqwords = len / sizeof(uint64_t); nqwords; nqwords--) {
+#ifdef USE_HARDWARE_CRC32
+	    __asm__ __volatile__ (
+		".byte 0xf2, 0x48, 0x0f, 0x38, 0xf0, 0xf1;"
+		: "=S"(crc)
+		: "S"(crc), "c"(*p));
+#else
 		crc ^= *(uint32_t *)p;
 		p += sizeof(uint32_t);
 		next = *(uint32_t *)p;
@@ -1139,22 +1161,32 @@ __wt_cksum(const void *chunk, size_t len)
 			g_crc_slicing[1][(next >> 16) & 0xFF] ^
 			g_crc_slicing[0][(next >> 24)];
 #endif
+#endif
 	}

 	/* Checksum trailing bytes one byte at a time. */
+	for (len &= 0x7; len > 0; ++p, len--) {
+#ifdef USE_HARDWARE_CRC32
+	    __asm__ __volatile__(
+		".byte 0xF2, 0x0F, 0x38, 0xF0, 0xF1"
+		: "=S" (crc)
+		: "0" (crc), "c" (*p));
+#else
 #ifdef WORDS_BIGENDIAN
-	for (len &= 0x7; len > 0; ++p, len--)
 		crc = g_crc_slicing[0][((crc >> 24) ^ *p) & 0xFF] ^ (crc << 8);
+#else
+		crc = g_crc_slicing[0][(crc ^ *p) & 0xFF] ^ (crc >> 8);
+#endif
+#endif
+	}

+#ifdef WORDS_BIGENDIAN
 	/* Do final byte swap to produce a result identical to little endian */
 	crc =
 		((crc << 24) & 0xFF000000) |
 		((crc <<  8) & 0x00FF0000) |
 		((crc >>  8) & 0x0000FF00) |
 		((crc >> 24) & 0x000000FF);
-#else
-	for (len &= 0x7; len > 0; ++p, len--)
-		crc = g_crc_slicing[0][(crc ^ *p) & 0xFF] ^ (crc >> 8);
 #endif
 	return (~crc);
 }