diff --git a/c_src/wiredtiger-build.patch b/c_src/wiredtiger-build.patch
index 22628e6..8932c20 100644
--- a/c_src/wiredtiger-build.patch
+++ b/c_src/wiredtiger-build.patch
@@ -1,106 +1,12 @@
 diff --git a/ext/compressors/snappy/Makefile.am b/ext/compressors/snappy/Makefile.am
-index 6d78823..2122cf8 100644
+index 6d78823..c423590 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);
- }
diff --git a/rebar.config b/rebar.config
index ecdc6ea..d1c7022 100644
--- a/rebar.config
+++ b/rebar.config
@@ -38,7 +38,7 @@
 {port_specs, [{"priv/wterl.so", ["c_src/*.c"]}]}.
 
 {port_env, [
-            {"DRV_CFLAGS",  "$DRV_CFLAGS -fPIC -Wall -Wextra -Werror -O3 -march=native -mtune=native -I c_src/system/include"},
+            {"DRV_CFLAGS",  "$DRV_CFLAGS  -O3 -mtune=native -march=native -fPIC -Wall -Wextra -Werror -I c_src/system/include"},
             {"DRV_LDFLAGS", "$DRV_LDFLAGS -Wl,-rpath,lib/wterl/priv:lib/wterl-0.9.0/priv:priv -Lc_src/system/lib -lwiredtiger"}
            ]}.