diff --git a/apache2/Makefile.am b/apache2/Makefile.am
index efb9b821..2066b330 100644
--- a/apache2/Makefile.am
+++ b/apache2/Makefile.am
@@ -37,6 +37,7 @@ mod_security2_la_CFLAGS = @APR_CFLAGS@ \
     @APU_CFLAGS@ \
     @APXS_CFLAGS@ \
     @CURL_CFLAGS@ \
+    @LIBMEMCACHED_CFLAGS@ \
     @LIBXML2_CFLAGS@ \
     @LUA_CFLAGS@ \
     @MODSEC_EXTRA_CFLAGS@ \
@@ -51,6 +52,7 @@ mod_security2_la_CPPFLAGS = @APR_CPPFLAGS@ \
 
 mod_security2_la_LIBADD = @APR_LDADD@ \
     @APU_LDADD@ \
+    @LIBMEMCACHED_LDADD@ \
     @LIBXML2_LDADD@ \
     @LUA_LDADD@ \
     @PCRE_LDADD@ \
@@ -61,6 +63,7 @@ mod_security2_la_LDFLAGS = -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -73,6 +76,7 @@ mod_security2_la_LDFLAGS = -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -85,6 +89,7 @@ mod_security2_la_LDFLAGS = -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -97,6 +102,7 @@ mod_security2_la_LDFLAGS = -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -109,6 +115,7 @@ mod_security2_la_LDFLAGS = -no-undefined -module -avoid-version -R @PCRE_LD_PATH
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -121,6 +128,7 @@ mod_security2_la_LDFLAGS = -no-undefined -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -133,6 +141,7 @@ mod_security2_la_LDFLAGS = -no-undefined -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -145,6 +154,7 @@ mod_security2_la_LDFLAGS = -no-undefined -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
diff --git a/build/find_libmemcache.m4 b/build/find_libmemcache.m4
new file mode 100644
index 00000000..5e0e00c9
--- /dev/null
+++ b/build/find_libmemcache.m4
@@ -0,0 +1,82 @@
+dnl Check for LIBMEMCACHED Libraries
+dnl CHECK_LIBMEMCACHED(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
+dnl Sets:
+dnl  LIBMEMCACHED_CFLAGS
+dnl  LIBMEMCACHED_LDFLAGS
+dnl  LIBMEMCACHED_LDADD
+
+AC_DEFUN([CHECK_LIBMEMCACHED],
+[dnl
+
+LIBMEMCACHED_CFLAGS=""
+LIBMEMCACHED_LDFLAGS=""
+LIBMEMCACHED_LDADD=""
+
+AC_ARG_WITH(
+    libmemcached,
+    [AC_HELP_STRING([--with-libmemcached=PATH],[Path to libmemcached prefix])]
+    ,, with_libmemcached=yes)
+
+AS_CASE(["${with_libmemcached}"],
+    [no], [test_paths=],
+    [yes], [test_paths="/usr/lib /usr/local/lib /usr/local/libmemcached /usr/local/libmemcached /usr/local /opt/libmemcached /opt/libmemcached /opt /usr /usr/lib/x86_64-linux-gnu/"],
+    [test_paths="${with_libmemcached}"])
+
+AS_IF([test "x${test_paths}" != "x"], [
+AC_MSG_CHECKING([for libmemcached path])
+  
+  LIBMEMCACHED_LIB_NAME="memcached"
+  LIBMEMCACHED_LIB_FILENAME="lib$LIBMEMCACHED_LIB_NAME.so"
+
+  if test -z "$withlibmemcached" -o "$withlibmemcached" = "yes"; then
+    for i in ${test_paths}; do
+      if test -f "$i/$LIBMEMCACHED_LIB_FILENAME"; then
+        LIBMEMCACHED_LIB_DIR="$i"
+      fi
+    done
+  else
+    if test -f "$withlibmemcached/$LIBMEMCACHED_LIB_FILENAME"; then
+      LIBMEMCACHED_LIB_DIR="$withlibmemcached"
+    else
+      if test -f "$withlibmemcached/.libs/$LIBMEMCACHED_LIB_FILENAME"; then
+        LIBMEMCACHED_LIB_DIR="$withlibmemcached/.libs/"
+      fi
+    fi
+  fi
+
+  LIBMEMCACHED_LDFLAGS="-l$LIBMEMCACHED_LIB_NAME"
+  LIBMEMCACHED_LDADD="-l$LIBMEMCACHED_LIB_NAME"
+
+  if test -z "$withlibmemcached" -o "$withlibmemcached" = "yes"; then
+    for i in /usr/include /usr/local/include /usr/include/libmemcached; do
+      if test -f "$i/$LIBMEMCACHED_LIB_NAME.h"; then
+        LIBMEMCACHED_CFLAGS="-I$i"
+      fi
+    done
+  else
+    if test -f "$withlibmemcached/../$LIBMEMCACHED_LIB_NAME.h"; then
+      LIBMEMCACHED_CFLAGS="-I$withlibmemcached/../"
+    else
+      if test -f "$withlibmemcached/$LIBMEMCACHED_LIB_NAME.h"; then
+        LIBMEMCACHED_CFLAGS="-I$withlibmemcached"
+      fi
+    fi
+  fi
+
+])  
+ 
+    if test -z "${LIBMEMCACHED_CFLAGS}"; then
+        AC_MSG_NOTICE([optional libmemcached library not found])
+	LIBMEMCACHED_LDFLAGS=""
+        LIBMEMCACHED_LDADD=""
+        AC_MSG_RESULT([no])
+    else
+        LIBMEMCACHED_CFLAGS="-DWITH_LIBMEMCACHED ${LIBMEMCACHED_CFLAGS}"
+        AC_SUBST(LIBMEMCACHED_LDFLAGS)
+        AC_SUBST(LIBMEMCACHED_LDADD)
+        AC_SUBST(LIBMEMCACHED_CFLAGS)
+
+        AC_MSG_RESULT([${LIBMEMCACHED_LDFLAGS} ${LIBMEMCACHED_CFLAGS}]) 
+    fi 
+
+])
diff --git a/configure.ac b/configure.ac
index d3aa8f71..bc4ccccc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -694,6 +694,7 @@ CHECK_APU()
 fi
 CHECK_LIBXML2()
 CHECK_LUA()
+CHECK_LIBMEMCACHED()
 if test "$build_mlogc" -ne 0; then
 CHECK_CURL()
 fi
diff --git a/ext/Makefile.am b/ext/Makefile.am
index f0676438..4098ab1f 100644
--- a/ext/Makefile.am
+++ b/ext/Makefile.am
@@ -3,6 +3,7 @@ EXT_CFLAGS = -I../apache2 \
     @APR_CFLAGS@ \
     @APU_CFLAGS@ \
     @APXS_CFLAGS@ \
+    @LIBMEMCACHED_CFLAGS@ \
     @LIBXML2_CFLAGS@ \
     @LUA_CFLAGS@ \
     @SSDEEP_CFLAGS@
@@ -12,6 +13,7 @@ EXT_CPPFLAGS = @APR_CPPFLAGS@ \
     
 EXT_LIBADD = @APR_LDADD@ \
     @APU_LDADD@ \
+    @LIBMEMCACHED_LDADD@ \
     @LIBXML2_LDADD@ \
     @LUA_LDADD@
 
@@ -19,6 +21,7 @@ EXT_LDFLAGS = -no-undefined -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @SSDEEP_LDFLAGS@
diff --git a/standalone/Makefile.am b/standalone/Makefile.am
index 1e3875d5..d36b64d2 100644
--- a/standalone/Makefile.am
+++ b/standalone/Makefile.am
@@ -47,6 +47,7 @@ standalone_la_CFLAGS = -DVERSION_NGINX \
     @APU_CFLAGS@ \
     @APXS_CFLAGS@ \
     @CURL_CFLAGS@ \
+    @LIBMEMCACHED_CFLAGS@ \
     @LIBXML2_CFLAGS@ \
     @LUA_CFLAGS@ \
     @MODSEC_EXTRA_CFLAGS@ \
@@ -60,6 +61,7 @@ standalone_la_CPPFLAGS = @APR_CPPFLAGS@ \
     
 standalone_la_LIBADD = @APR_LDADD@ \
     @APU_LDADD@ \
+    @LIBMEMCACHED_LDADD@ \
     @LIBXML2_LDADD@ \
     @LUA_LDADD@ \
     @PCRE_LDADD@ \
@@ -71,6 +73,7 @@ standalone_la_LDFLAGS = -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -83,6 +86,7 @@ standalone_la_LDFLAGS = -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -95,6 +99,7 @@ standalone_la_LDFLAGS = -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -107,6 +112,7 @@ standalone_la_LDFLAGS = -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -119,6 +125,7 @@ standalone_la_LDFLAGS = -no-undefined -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -131,6 +138,7 @@ standalone_la_LDFLAGS = -no-undefined -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -143,6 +151,7 @@ standalone_la_LDFLAGS = -no-undefined -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
@@ -155,6 +164,7 @@ standalone_la_LDFLAGS = -no-undefined -module -avoid-version \
     @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \
diff --git a/tests/Makefile.am b/tests/Makefile.am
index eaa1ad9a..73386ba1 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -32,6 +32,7 @@ msc_test_SOURCES = msc_test.c \
 msc_test_CFLAGS = @APR_CFLAGS@ \
     @APU_CFLAGS@ \
     @APXS_CFLAGS@ \
+    @LIBMEMCACHED_CFLAGS@ \
     @LIBXML2_CFLAGS@ \
     @LUA_CFLAGS@ \
     @MODSEC_EXTRA_CFLAGS@ \
@@ -46,6 +47,7 @@ msc_test_CPPFLAGS = -I$(top_srcdir)/apache2 \
     
 msc_test_LDADD = @APR_LDADD@ \
     @APU_LDADD@ \
+    @LIBMEMCACHED_LDADD@ \
     @LIBXML2_LDADD@ \
     @LUA_LDADD@ \
     @PCRE_LDADD@ \
@@ -55,6 +57,7 @@ msc_test_LDADD = @APR_LDADD@ \
 msc_test_LDFLAGS = @APR_LDFLAGS@ \
     @APU_LDFLAGS@ \
     @APXS_LDFLAGS@ \
+    @LIBMEMCACHED_LDFLAGS@ \
     @LIBXML2_LDFLAGS@ \
     @LUA_LDFLAGS@ \
     @PCRE_LDFLAGS@ \