diff --git a/contrib/apr-util/CHANGES b/contrib/apr-util/CHANGES
index 67eefbdd961e..7626c50b52b1 100644
--- a/contrib/apr-util/CHANGES
+++ b/contrib/apr-util/CHANGES
@@ -1,4 +1,23 @@
                                                      -*- coding: utf-8 -*-
+Changes with APR-util 1.5.3
+
+  *) Cygwin: Use correct file extension when loading APR DSOs.  PR 55587.
+     [Carlo Bramini <carlo.bramix libero.it>]
+
+  *) Add experimental cmake-based build system for Windows.  Refer to
+     README.cmake for more information.  [Jeff Trawick, Tom Donovan]
+
+  *) Fix warnings in odbc driver on 64bit systems.
+     PR 55197  [Tom Donovan]
+
+  *) Add support to apr_memcache for unix domain sockets. PR 54573 [Remi
+     Gacogne <rgacogne+asf aquaray.com>]
+
+  *) Add support for Berkeley DB 6.0. [Rainer Jung]
+
+  *) Improve platform detection for bundled expat by updating
+     config.guess and config.sub. [Rainer Jung]
+
 Changes with APR-util 1.5.2
 
   *) Windows: Add command line makefiles. [Gregg Smith]
diff --git a/contrib/apr-util/apr-util.spec b/contrib/apr-util/apr-util.spec
index 36249ff9ee83..d08400dff4f8 100644
--- a/contrib/apr-util/apr-util.spec
+++ b/contrib/apr-util/apr-util.spec
@@ -3,7 +3,7 @@
 
 Summary: Apache Portable Runtime Utility library
 Name: apr-util
-Version: 1.5.2
+Version: 1.5.3
 Release: 1
 License: Apache Software License
 Group: System Environment/Libraries
diff --git a/contrib/apr-util/configure b/contrib/apr-util/configure
index 6d614e91978e..ccfc3e603675 100755
--- a/contrib/apr-util/configure
+++ b/contrib/apr-util/configure
@@ -1440,7 +1440,7 @@ Optional Packages:
   --with-ldap-lib=path    path to ldap lib file
   --with-ldap=library     ldap library to use
   --with-dbm=DBM          choose the DBM type to use.
-                          DBM={sdbm,gdbm,ndbm,db,db1,db185,db2,db3,db4,db4X,db5X}
+                          DBM={sdbm,gdbm,ndbm,db,db1,db185,db2,db3,db4,db4X,db5X,db6X}
                           for some X=0,...,9
   --with-gdbm=DIR         enable GDBM support
   --with-ndbm=PATH        Find the NDBM header and library in `PATH/include'
@@ -11218,8 +11218,10 @@ fi
 
       fi
 
-      test ${apu_has_ldap} != "1" && as_fn_error $? "could not find an LDAP library" "$LINENO" 5
-      test ${apu_has_ldap} == "1" &&
+      if test ${apu_has_ldap} != "1"; then
+        as_fn_error $? "could not find an LDAP library" "$LINENO" 5
+      else
+
   if test "x$LDADD_ldap" = "x"; then
     test "x$silent" != "xyes" && echo "  setting LDADD_ldap to \"$LDADD_ldap_found\""
     LDADD_ldap="$LDADD_ldap_found"
@@ -11240,6 +11242,7 @@ fi
     done
   fi
 
+      fi
       as_ac_Lib=`$as_echo "ac_cv_lib_$apu_liblber_name''_ber_init" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ber_init in -l$apu_liblber_name" >&5
 $as_echo_n "checking for ber_init in -l$apu_liblber_name... " >&6; }
@@ -11617,6 +11620,7 @@ fi
     dbm_list="$dbm_list, db$db_version"
     db_version=`expr $db_version + 1`
   done
+  dbm_list="$dbm_list, db60"
 
 
 # Check whether --with-dbm was given.
@@ -15708,7 +15712,7 @@ fi
       as_fn_error $? "Berkeley db3 not found" "$LINENO" 5
     fi
     ;;
-  db[45][0-9])
+  db[456][0-9])
     db_major=`echo "$requested" | sed -e 's/db//' -e 's/.$//'`
     db_minor=`echo "$requested" | sed -e 's/db//' -e 's/.//'`
 
@@ -16113,7 +16117,7 @@ fi
       as_fn_error $? "Berkeley db$db_major not found" "$LINENO" 5
     fi
     ;;
-  db[45])
+  db[456])
     db_major=`echo "$requested" | sed -e 's/db//'`
     # Start version search at version x.9
     db_minor=9
@@ -18561,11 +18565,11 @@ fi
       eval "apu_use_$requested=1"
       apu_default_dbm=$requested
       ;;
-    db185 | db[12345])
+    db185 | db[123456])
       apu_use_db=1
       apu_default_dbm=$requested
       ;;
-    db[45][0-9])
+    db[456][0-9])
       apu_use_db=1
       apu_default_dbm=`echo $requested | sed -e 's/.$//'`
       ;;
diff --git a/contrib/apr-util/crypto/apr_crypto.c b/contrib/apr-util/crypto/apr_crypto.c
index 7643b94e1596..35ce3752a9b7 100644
--- a/contrib/apr-util/crypto/apr_crypto.c
+++ b/contrib/apr-util/crypto/apr_crypto.c
@@ -100,7 +100,9 @@ APU_DECLARE(apr_status_t) apr_crypto_init(apr_pool_t *pool)
     }
 
     /* Top level pool scope, need process-scope lifetime */
-    for (parent = pool; parent; parent = apr_pool_parent_get(pool))
+    for (parent = apr_pool_parent_get(pool);
+         parent && parent != pool;
+         parent = apr_pool_parent_get(pool))
         pool = parent;
 #if APU_DSO_BUILD
     /* deprecate in 2.0 - permit implicit initialization */
@@ -176,7 +178,7 @@ APU_DECLARE(apr_status_t) apr_crypto_get_driver(
 
 #if defined(NETWARE)
     apr_snprintf(modname, sizeof(modname), "crypto%s.nlm", name);
-#elif defined(WIN32)
+#elif defined(WIN32) || defined(__CYGWIN__)
     apr_snprintf(modname, sizeof(modname),
             "apr_crypto_%s-" APU_STRINGIFY(APU_MAJOR_VERSION) ".dll", name);
 #else
diff --git a/contrib/apr-util/dbd/apr_dbd.c b/contrib/apr-util/dbd/apr_dbd.c
index 49553f2b6250..bfa97d9e380a 100644
--- a/contrib/apr-util/dbd/apr_dbd.c
+++ b/contrib/apr-util/dbd/apr_dbd.c
@@ -102,8 +102,10 @@ APU_DECLARE(apr_status_t) apr_dbd_init(apr_pool_t *pool)
     }
 
     /* Top level pool scope, need process-scope lifetime */
-    for (parent = pool;  parent; parent = apr_pool_parent_get(pool))
-         pool = parent;
+    for (parent = apr_pool_parent_get(pool);
+        parent && parent != pool;
+        parent = apr_pool_parent_get(pool))
+       pool = parent;
 #if APU_DSO_BUILD
     /* deprecate in 2.0 - permit implicit initialization */
     apu_dso_init(pool);
@@ -184,7 +186,7 @@ APU_DECLARE(apr_status_t) apr_dbd_get_driver(apr_pool_t *pool, const char *name,
 
 #if defined(NETWARE)
     apr_snprintf(modname, sizeof(modname), "dbd%s.nlm", name);
-#elif defined(WIN32)
+#elif defined(WIN32) || defined(__CYGWIN__)
     apr_snprintf(modname, sizeof(modname),
                  "apr_dbd_%s-" APU_STRINGIFY(APU_MAJOR_VERSION) ".dll", name);
 #else
@@ -204,7 +206,7 @@ APU_DECLARE(apr_status_t) apr_dbd_get_driver(apr_pool_t *pool, const char *name,
     }
     apu_dso_mutex_unlock();
 
-#else /* not builtin and !APR_HAS_DSO => not implemented */
+#else /* not builtin and !APU_DSO_BUILD => not implemented */
     rv = APR_ENOTIMPL;
 #endif
 
diff --git a/contrib/apr-util/dbd/apr_dbd_odbc.c b/contrib/apr-util/dbd/apr_dbd_odbc.c
index 3a97052fbb2c..6ee8a7d570f0 100644
--- a/contrib/apr-util/dbd/apr_dbd_odbc.c
+++ b/contrib/apr-util/dbd/apr_dbd_odbc.c
@@ -114,9 +114,9 @@ struct apr_dbd_t
     char lastError[MAX_ERROR_STRING];
     int defaultBufferSize;      /* used for CLOBs in text mode, 
                                  * and when fld size is indeterminate */
-    int transaction_mode;
-    int dboptions;              /* driver options re SQLGetData */
-    int default_transaction_mode;
+    intptr_t transaction_mode;
+    intptr_t dboptions;         /* driver options re SQLGetData */
+    intptr_t default_transaction_mode;
     int can_commit;             /* controls end_trans behavior */
 };
 
@@ -359,7 +359,7 @@ static SQLRETURN odbc_set_result_column(int icol, apr_dbd_results_t *res,
                                         SQLHANDLE stmt)
 {
     SQLRETURN rc;
-    int maxsize, textsize, realsize, type, isunsigned = 1;
+    intptr_t maxsize, textsize, realsize, type, isunsigned = 1;
 
     /* discover the sql type */
     rc = SQLColAttribute(stmt, icol + 1, SQL_DESC_UNSIGNED, NULL, 0, NULL,
@@ -409,7 +409,7 @@ static SQLRETURN odbc_set_result_column(int icol, apr_dbd_results_t *res,
       type = SQL_C_CHAR;
     }
 
-    res->coltypes[icol] = type;
+    res->coltypes[icol] = (SQLSMALLINT)type;
 
     /* size if retrieved as text */
     rc = SQLColAttribute(stmt, icol + 1, SQL_DESC_DISPLAY_SIZE, NULL, 0,
@@ -441,12 +441,12 @@ static SQLRETURN odbc_set_result_column(int icol, apr_dbd_results_t *res,
 
         res->colptrs[icol] =  NULL;
         res->colstate[icol] = COL_AVAIL;
-        res->colsizes[icol] = maxsize;
+        res->colsizes[icol] = (SQLINTEGER)maxsize;
         rc = SQL_SUCCESS;
     }
     else {
         res->colptrs[icol] = apr_pcalloc(res->pool, maxsize);
-        res->colsizes[icol] = maxsize;
+        res->colsizes[icol] = (SQLINTEGER)maxsize;
         if (res->apr_dbd->dboptions & SQL_GD_BOUND) {
             /* we are allowed to call SQLGetData if we need to */
             rc = SQLBindCol(stmt, icol + 1, res->coltypes[icol], 
@@ -747,7 +747,7 @@ static void *odbc_get(const apr_dbd_row_t *row, const int col,
     SQLRETURN rc;
     SQLLEN indicator;
     int state = row->res->colstate[col];
-    int options = row->res->apr_dbd->dboptions;
+    intptr_t options = row->res->apr_dbd->dboptions;
 
     switch (state) {
     case (COL_UNAVAIL):
@@ -817,13 +817,13 @@ static apr_status_t odbc_parse_params(apr_pool_t *pool, const char *params,
                                int *connect, SQLCHAR **datasource, 
                                SQLCHAR **user, SQLCHAR **password, 
                                int *defaultBufferSize, int *nattrs,
-                               int **attrs, int **attrvals)
+                               int **attrs, intptr_t **attrvals)
 {
     char *seps, *last, *next, *name[MAX_PARAMS], *val[MAX_PARAMS];
     int nparams = 0, i, j;
 
     *attrs = apr_pcalloc(pool, MAX_PARAMS * sizeof(char *));
-    *attrvals = apr_pcalloc(pool, MAX_PARAMS * sizeof(int));
+    *attrvals = apr_pcalloc(pool, MAX_PARAMS * sizeof(intptr_t));
     *nattrs = 0;
     seps = DEFAULTSEPS;
     name[nparams] = apr_strtok(apr_pstrdup(pool, params), seps, &last);
@@ -1062,7 +1062,8 @@ static apr_dbd_t *odbc_open(apr_pool_t *pool, const char *params, const char **e
     SQLHANDLE err_h = NULL;
     SQLCHAR  *datasource = (SQLCHAR *)"", *user = (SQLCHAR *)"",
              *password = (SQLCHAR *)"";
-    int nattrs = 0, *attrs = NULL, *attrvals = NULL, connect = 0;
+    int nattrs = 0, *attrs = NULL,  connect = 0;
+    intptr_t *attrvals = NULL;
 
     err_step = "SQLAllocHandle (SQL_HANDLE_DBC)";
     err_htype = SQL_HANDLE_ENV;
@@ -1116,10 +1117,10 @@ static apr_dbd_t *odbc_open(apr_pool_t *pool, const char *params, const char **e
         handle->default_transaction_mode = 0;
         handle->can_commit = APR_DBD_TRANSACTION_IGNORE_ERRORS;
         SQLGetInfo(hdbc, SQL_DEFAULT_TXN_ISOLATION,
-                   &(handle->default_transaction_mode), sizeof(int), NULL);
+                   &(handle->default_transaction_mode), sizeof(intptr_t), NULL);
         handle->transaction_mode = handle->default_transaction_mode;
         SQLGetInfo(hdbc, SQL_GETDATA_EXTENSIONS ,&(handle->dboptions),
-                   sizeof(int), NULL);
+                   sizeof(intptr_t), NULL);
         apr_pool_cleanup_register(pool, handle, odbc_close_cleanup, apr_pool_cleanup_null);
         return handle;
     }
diff --git a/contrib/apr-util/dbm/apr_dbm.c b/contrib/apr-util/dbm/apr_dbm.c
index 5c506fc8821a..8b58f8331cd2 100644
--- a/contrib/apr-util/dbm/apr_dbm.c
+++ b/contrib/apr-util/dbm/apr_dbm.c
@@ -129,8 +129,10 @@ static apr_status_t dbm_open_type(apr_dbm_type_t const* * vtable,
         apr_pool_t *parent;
 
         /* Top level pool scope, need process-scope lifetime */
-        for (parent = pool;  parent; parent = apr_pool_parent_get(pool))
-             pool = parent;
+        for (parent = apr_pool_parent_get(pool);
+             parent && parent != pool;
+             parent = apr_pool_parent_get(pool))
+            pool = parent;
 
         /* deprecate in 2.0 - permit implicit initialization */
         apu_dso_init(pool);
@@ -162,7 +164,7 @@ static apr_status_t dbm_open_type(apr_dbm_type_t const* * vtable,
 
 #if defined(NETWARE)
     apr_snprintf(modname, sizeof(modname), "dbm%s.nlm", type);
-#elif defined(WIN32)
+#elif defined(WIN32) || defined (__CYGWIN__)
     apr_snprintf(modname, sizeof(modname),
                  "apr_dbm_%s-" APU_STRINGIFY(APU_MAJOR_VERSION) ".dll", type);
 #else
diff --git a/contrib/apr-util/include/apr_buckets.h b/contrib/apr-util/include/apr_buckets.h
index 4838ab28d972..025292b98658 100644
--- a/contrib/apr-util/include/apr_buckets.h
+++ b/contrib/apr-util/include/apr_buckets.h
@@ -351,9 +351,9 @@ typedef apr_status_t (*apr_brigade_flush)(apr_bucket_brigade *bb, void *ctx);
 #define APR_BRIGADE_LAST(b)	APR_RING_LAST(&(b)->list)
 
 /**
- * Insert a list of buckets at the front of a brigade
+ * Insert a single bucket at the front of a brigade
  * @param b The brigade to add to
- * @param e The first bucket in a list of buckets to insert
+ * @param e The bucket to insert
  */
 #define APR_BRIGADE_INSERT_HEAD(b, e) do {				\
 	apr_bucket *ap__b = (e);                                        \
@@ -362,9 +362,9 @@ typedef apr_status_t (*apr_brigade_flush)(apr_bucket_brigade *bb, void *ctx);
     } while (0)
 
 /**
- * Insert a list of buckets at the end of a brigade
+ * Insert a single bucket at the end of a brigade
  * @param b The brigade to add to
- * @param e The first bucket in a list of buckets to insert
+ * @param e The bucket to insert
  */
 #define APR_BRIGADE_INSERT_TAIL(b, e) do {				\
 	apr_bucket *ap__b = (e);					\
@@ -393,9 +393,9 @@ typedef apr_status_t (*apr_brigade_flush)(apr_bucket_brigade *bb, void *ctx);
     } while (0)
 
 /**
- * Insert a list of buckets before a specified bucket
+ * Insert a single bucket before a specified bucket
  * @param a The bucket to insert before
- * @param b The buckets to insert
+ * @param b The bucket to insert
  */
 #define APR_BUCKET_INSERT_BEFORE(a, b) do {				\
 	apr_bucket *ap__a = (a), *ap__b = (b);				\
@@ -404,9 +404,9 @@ typedef apr_status_t (*apr_brigade_flush)(apr_bucket_brigade *bb, void *ctx);
     } while (0)
 
 /**
- * Insert a list of buckets after a specified bucket
+ * Insert a single bucket after a specified bucket
  * @param a The bucket to insert after
- * @param b The buckets to insert
+ * @param b The bucket to insert
  */
 #define APR_BUCKET_INSERT_AFTER(a, b) do {				\
 	apr_bucket *ap__a = (a), *ap__b = (b);				\
diff --git a/contrib/apr-util/include/apr_dbd.h b/contrib/apr-util/include/apr_dbd.h
index f30977daf4ca..3a334b73e2b3 100644
--- a/contrib/apr-util/include/apr_dbd.h
+++ b/contrib/apr-util/include/apr_dbd.h
@@ -107,10 +107,10 @@ APU_DECLARE(apr_status_t) apr_dbd_get_driver(apr_pool_t *pool, const char *name,
 
 /** apr_dbd_open_ex: open a connection to a backend
  *
+ *  @param driver - driver struct.
  *  @param pool - working pool
  *  @param params - arguments to driver (implementation-dependent)
  *  @param handle - pointer to handle to return
- *  @param driver - driver struct.
  *  @param error - descriptive error.
  *  @return APR_SUCCESS for success
  *  @return APR_EGENERAL if driver exists but connection failed
@@ -147,10 +147,10 @@ APU_DECLARE(apr_status_t) apr_dbd_open_ex(const apr_dbd_driver_t *driver,
 
 /** apr_dbd_open: open a connection to a backend
  *
+ *  @param driver - driver struct.
  *  @param pool - working pool
  *  @param params - arguments to driver (implementation-dependent)
  *  @param handle - pointer to handle to return
- *  @param driver - driver struct.
  *  @return APR_SUCCESS for success
  *  @return APR_EGENERAL if driver exists but connection failed
  *  @see apr_dbd_open_ex
@@ -161,8 +161,8 @@ APU_DECLARE(apr_status_t) apr_dbd_open(const apr_dbd_driver_t *driver,
 
 /** apr_dbd_close: close a connection to a backend
  *
- *  @param handle - handle to close
  *  @param driver - driver struct.
+ *  @param handle - handle to close
  *  @return APR_SUCCESS for success or error status
  */
 APU_DECLARE(apr_status_t) apr_dbd_close(const apr_dbd_driver_t *driver,
diff --git a/contrib/apr-util/include/apr_hooks.h b/contrib/apr-util/include/apr_hooks.h
index b675711e72b1..eee16e3c63e5 100644
--- a/contrib/apr-util/include/apr_hooks.h
+++ b/contrib/apr-util/include/apr_hooks.h
@@ -313,24 +313,24 @@ APU_DECLARE_DATA extern apr_pool_t *apr_hook_global_pool;
 
 /**
  * A global variable to determine if debugging information about the
- * hooks functions should be printed
+ * hooks functions should be printed.
  */ 
 APU_DECLARE_DATA extern int apr_hook_debug_enabled;
 
 /**
- * The name of the module that is currently registering a function
+ * The name of the module that is currently registering a function.
  */ 
 APU_DECLARE_DATA extern const char *apr_hook_debug_current;
 
 /**
- * Register a hook function to be sorted
+ * Register a hook function to be sorted.
  * @param szHookName The name of the Hook the function is registered for
  * @param aHooks The array which stores all of the functions for this hook
  */
 APU_DECLARE(void) apr_hook_sort_register(const char *szHookName, 
                                         apr_array_header_t **aHooks);
 /**
- * Sort all of the registerd functions for a given hook
+ * Sort all of the registered functions for a given hook.
  */
 APU_DECLARE(void) apr_hook_sort_all(void);
 
diff --git a/contrib/apr-util/include/apr_optional_hooks.h b/contrib/apr-util/include/apr_optional_hooks.h
index 54bf65effab2..8265f03f38da 100644
--- a/contrib/apr-util/include/apr_optional_hooks.h
+++ b/contrib/apr-util/include/apr_optional_hooks.h
@@ -33,11 +33,11 @@ extern "C" {
  * @{
  */
 /**
- * Function to implemnt the APR_OPTIONAL_HOOK Macro
+ * Function to implement the APR_OPTIONAL_HOOK Macro
  * @internal
  * @see APR_OPTIONAL_HOOK
  *
- * @param name The name of the hook
+ * @param szName The name of the hook
  * @param pfn A pointer to a function that will be called
  * @param aszPre a NULL-terminated array of strings that name modules whose hooks should precede this one
  * @param aszSucc a NULL-terminated array of strings that name modules whose hooks should succeed this one
diff --git a/contrib/apr-util/include/apr_queue.h b/contrib/apr-util/include/apr_queue.h
index 20c425db38ff..a3a41704862a 100644
--- a/contrib/apr-util/include/apr_queue.h
+++ b/contrib/apr-util/include/apr_queue.h
@@ -22,7 +22,7 @@
  * @brief Thread Safe FIFO bounded queue
  * @note Since most implementations of the queue are backed by a condition
  * variable implementation, it isn't available on systems without threads.
- * Although condition variables are some times available without threads.
+ * Although condition variables are sometimes available without threads.
  */
 
 #include "apu.h"
diff --git a/contrib/apr-util/include/apr_reslist.h b/contrib/apr-util/include/apr_reslist.h
index 1e30a5382054..02a8192b99e9 100644
--- a/contrib/apr-util/include/apr_reslist.h
+++ b/contrib/apr-util/include/apr_reslist.h
@@ -44,7 +44,7 @@ typedef struct apr_reslist_t apr_reslist_t;
 /* Generic constructor called by resource list when it needs to create a
  * resource.
  * @param resource opaque resource
- * @param param flags
+ * @param params flags
  * @param pool  Pool
  */
 typedef apr_status_t (*apr_reslist_constructor)(void **resource, void *params,
@@ -53,7 +53,7 @@ typedef apr_status_t (*apr_reslist_constructor)(void **resource, void *params,
 /* Generic destructor called by resource list when it needs to destroy a
  * resource.
  * @param resource opaque resource
- * @param param flags
+ * @param params flags
  * @param pool  Pool
  */
 typedef apr_status_t (*apr_reslist_destructor)(void *resource, void *params,
@@ -111,12 +111,17 @@ APU_DECLARE(apr_status_t) apr_reslist_destroy(apr_reslist_t *reslist);
  * Retrieve a resource from the list, creating a new one if necessary.
  * If we have met our maximum number of resources, we will block
  * until one becomes available.
+ * @param reslist The resource list.
+ * @param resource An address where the pointer to the resource
+ *                will be stored.
  */
 APU_DECLARE(apr_status_t) apr_reslist_acquire(apr_reslist_t *reslist,
                                               void **resource);
 
 /**
  * Return a resource back to the list of available resources.
+ * @param reslist The resource list.
+ * @param resource The resource to return to the list.
  */
 APU_DECLARE(apr_status_t) apr_reslist_release(apr_reslist_t *reslist,
                                               void *resource);
@@ -140,6 +145,8 @@ APU_DECLARE(apr_uint32_t) apr_reslist_acquired_count(apr_reslist_t *reslist);
  * Invalidate a resource in the pool - e.g. a database connection
  * that returns a "lost connection" error and can't be restored.
  * Use this instead of apr_reslist_release if the resource is bad.
+ * @param reslist The resource list.
+ * @param resource The resource to invalidate.
  */
 APU_DECLARE(apr_status_t) apr_reslist_invalidate(apr_reslist_t *reslist,
                                                  void *resource);
diff --git a/contrib/apr-util/include/apu.hw b/contrib/apr-util/include/apu.hw
index 5be70de6093c..a6cde01a3a84 100644
--- a/contrib/apr-util/include/apu.hw
+++ b/contrib/apr-util/include/apu.hw
@@ -42,6 +42,12 @@
  * conventions at compile time.
  */
 
+/* Make sure we have our platform identifier macro defined we ask for later.
+ */
+#if defined(_WIN32) && !defined(WIN32)
+#define WIN32 1
+#endif
+
 #if defined(DOXYGEN) || !defined(WIN32)
 /**
  * The public APR-UTIL functions are declared with APU_DECLARE(), so they may
diff --git a/contrib/apr-util/include/apu_version.h b/contrib/apr-util/include/apu_version.h
index 7435084f3288..a7a587876244 100644
--- a/contrib/apr-util/include/apu_version.h
+++ b/contrib/apr-util/include/apu_version.h
@@ -38,6 +38,9 @@
  */
 
 
+#define APU_COPYRIGHT "Copyright (c) 2013 The Apache Software " \
+                      "Foundation or its licensors, as applicable."
+
 /* The numeric compile-time version constants. These constants are the
  * authoritative version numbers for APU. 
  */
@@ -59,7 +62,7 @@
  * The Patch Level never includes API changes, simply bug fixes.
  * Reset to 0 when upgrading APR_MINOR_VERSION
  */
-#define APU_PATCH_VERSION       2
+#define APU_PATCH_VERSION       3
 
 /** 
  * The symbol APU_IS_DEV_VERSION is only defined for internal,
@@ -71,7 +74,9 @@
 
 #if defined(APU_IS_DEV_VERSION) || defined(DOXYGEN)
 /** Internal: string form of the "is dev" flag */
+#ifndef APU_IS_DEV_STRING
 #define APU_IS_DEV_STRING "-dev"
+#endif
 #else
 #define APU_IS_DEV_STRING ""
 #endif
diff --git a/contrib/apr-util/libaprutil.rc b/contrib/apr-util/libaprutil.rc
index 2beceeb440ca..a1ffddbd5bfc 100644
--- a/contrib/apr-util/libaprutil.rc
+++ b/contrib/apr-util/libaprutil.rc
@@ -1,8 +1,5 @@
 #include "apu_version.h"
 
-#define APU_COPYRIGHT "Copyright (c) 2011 The Apache Software " \
-                      "Foundation or its licensors, as applicable."
-
 #define APU_LICENSE \
   "Licensed to the Apache Software Foundation (ASF) under one or more " \
   "contributor license agreements.  See the NOTICE file distributed with " \
diff --git a/contrib/apr-util/memcache/apr_memcache.c b/contrib/apr-util/memcache/apr_memcache.c
index f6b911d99203..b9922fb767a0 100644
--- a/contrib/apr-util/memcache/apr_memcache.c
+++ b/contrib/apr-util/memcache/apr_memcache.c
@@ -181,7 +181,7 @@ apr_memcache_find_server_hash_default(void *baton, apr_memcache_t *mc,
 #if APR_HAS_THREADS
             apr_thread_mutex_lock(ms->lock);
 #endif
-            /* Try the the dead server, every 5 seconds */
+            /* Try the dead server, every 5 seconds */
             if (curtime - ms->btime >  apr_time_from_sec(5)) {
                 ms->btime = curtime;
                 if (mc_version_ping(ms) == APR_SUCCESS) {
@@ -289,8 +289,13 @@ static apr_status_t conn_connect(apr_memcache_conn_t *conn)
 {
     apr_status_t rv = APR_SUCCESS;
     apr_sockaddr_t *sa;
+#if APR_HAVE_SOCKADDR_UN
+    apr_int32_t family = conn->ms->host[0] != '/' ? APR_INET : APR_UNIX;
+#else
+    apr_int32_t family = APR_INET;
+#endif
 
-    rv = apr_sockaddr_info_get(&sa, conn->ms->host, APR_INET, conn->ms->port, 0, conn->p);
+    rv = apr_sockaddr_info_get(&sa, conn->ms->host, family, conn->ms->port, 0, conn->p);
     if (rv != APR_SUCCESS) {
         return rv;
     }
@@ -322,6 +327,11 @@ mc_conn_construct(void **conn_, void *params, apr_pool_t *pool)
     apr_pool_t *np;
     apr_pool_t *tp;
     apr_memcache_server_t *ms = params;
+#if APR_HAVE_SOCKADDR_UN
+    apr_int32_t family = ms->host[0] != '/' ? APR_INET : APR_UNIX;
+#else
+    apr_int32_t family = APR_INET;
+#endif
 
     rv = apr_pool_create(&np, pool);
     if (rv != APR_SUCCESS) {
@@ -339,7 +349,7 @@ mc_conn_construct(void **conn_, void *params, apr_pool_t *pool)
     conn->p = np;
     conn->tp = tp;
 
-    rv = apr_socket_create(&conn->sock, APR_INET, SOCK_STREAM, 0, np);
+    rv = apr_socket_create(&conn->sock, family, SOCK_STREAM, 0, np);
 
     if (rv != APR_SUCCESS) {
         apr_pool_destroy(np);
diff --git a/contrib/apr-util/misc/apu_dso.c b/contrib/apr-util/misc/apu_dso.c
index 639875dc7f0b..9d7f20659b50 100644
--- a/contrib/apr-util/misc/apu_dso.c
+++ b/contrib/apr-util/misc/apu_dso.c
@@ -75,7 +75,6 @@ static apr_status_t apu_dso_term(void *ptr)
 apr_status_t apu_dso_init(apr_pool_t *pool)
 {
     apr_status_t ret = APR_SUCCESS;
-    apr_pool_t *global;
     apr_pool_t *parent;
 
     if (apr_atomic_inc32(&initialised)) {
@@ -88,17 +87,19 @@ apr_status_t apu_dso_init(apr_pool_t *pool)
     }
 
     /* Top level pool scope, need process-scope lifetime */
-    for (parent = global = pool; parent; parent = apr_pool_parent_get(global))
-        global = parent;
+    for (parent = apr_pool_parent_get(pool);
+         parent && parent != pool;
+         parent = apr_pool_parent_get(pool))
+        pool = parent;
 
-    dsos = apr_hash_make(global);
+    dsos = apr_hash_make(pool);
 
 #if APR_HAS_THREADS
-    ret = apr_thread_mutex_create(&mutex, APR_THREAD_MUTEX_DEFAULT, global);
+    ret = apr_thread_mutex_create(&mutex, APR_THREAD_MUTEX_DEFAULT, pool);
     /* This already registers a pool cleanup */
 #endif
 
-    apr_pool_cleanup_register(global, NULL, apu_dso_term,
+    apr_pool_cleanup_register(pool, NULL, apu_dso_term,
                               apr_pool_cleanup_null);
 
     apr_atomic_dec32(&in_init);
diff --git a/contrib/apr-util/test/abts.c b/contrib/apr-util/test/abts.c
index b2c650871054..da0097d05d36 100644
--- a/contrib/apr-util/test/abts.c
+++ b/contrib/apr-util/test/abts.c
@@ -106,6 +106,9 @@ abts_suite *abts_add_suite(abts_suite *suite, const char *suite_name_full)
     /* suite_name_full may be an absolute path depending on __FILE__ 
      * expansion */
     suite_name = strrchr(suite_name_full, '/');
+    if (!suite_name) {
+        suite_name = strrchr(suite_name_full, '\\');
+    }
     if (suite_name) {
         suite_name++;
     } else {
@@ -247,7 +250,8 @@ void abts_int_nequal(abts_case *tc, const int expected, const int actual, int li
 
     tc->failed = TRUE;
     if (verbose) {
-        fprintf(stderr, "Line %d: expected <%d>, but saw <%d>\n", lineno, expected, actual);
+        fprintf(stderr, "Line %d: expected something other than <%d>, but saw <%d>\n",
+                lineno, expected, actual);
         fflush(stderr);
     }
 }
@@ -279,7 +283,8 @@ void abts_str_nequal(abts_case *tc, const char *expected, const char *actual,
 
     tc->failed = TRUE;
     if (verbose) {
-        fprintf(stderr, "Line %d: expected <%s>, but saw <%s>\n", lineno, expected, actual);
+        fprintf(stderr, "Line %d: expected something other than <%s>, but saw <%s>\n",
+                lineno, expected, actual);
         fflush(stderr);
     }
 }
diff --git a/contrib/apr-util/test/testpass.c b/contrib/apr-util/test/testpass.c
index 0b0ebccff830..2a27a8fbd77f 100644
--- a/contrib/apr-util/test/testpass.c
+++ b/contrib/apr-util/test/testpass.c
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 
diff --git a/contrib/apr-util/test/testssl.c b/contrib/apr-util/test/testssl.c
deleted file mode 100644
index e7f090e1bd64..000000000000
--- a/contrib/apr-util/test/testssl.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/* Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*
- * testssl: Simple APR SSL sockets test.
- */
-
-#include "apr.h"
-#include "apr_general.h"
-#include "apr_pools.h"
-#include "apr_errno.h"
-#include "apr_getopt.h"
-#include "apr_time.h"
-#define APR_WANT_STRFUNC
-#include "apr_want.h"
-
-#include "apr_ssl.h"
-#include "apr_network_io.h"
-
-#if APR_HAVE_STDIO_H
-#include <stdio.h>
-#endif
-#if APR_HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <stdlib.h>     /* for atexit(), malloc() */
-#include <string.h>
-
-struct sslTestCase {
-    char *host;
-    int port;
-    const char *request;
-    int result;
-} tests[] = {
-    { "svn.apache.org", 443, "GET / HTTP/1.0\n\n", 1 },
-    { NULL }
-};
-
-static apr_ssl_socket_t *createSocket(apr_ssl_factory_t *asf, 
-                                      apr_pollset_t *pollset,
-                                      apr_pool_t *pool, int blocking)
-{
-    apr_ssl_socket_t *sock;
-    apr_status_t rv;
-    printf("::Creating SSL socket\n");
-    rv = apr_ssl_socket_create(&sock, AF_INET, SOCK_STREAM, 0, asf, NULL);
-    if (rv != APR_SUCCESS) {
-        printf("\tFailed to create socket\n");
-        return NULL;
-    }
-    rv = apr_pollset_add_ssl_socket(pollset, sock);
-    if (rv != APR_SUCCESS) {
-        printf("\tFailed to add to pollset\n");
-        return NULL;
-    }
-    printf("\tOK\n");
-    return sock;
-}
-
-static apr_status_t connectSocket(apr_ssl_socket_t *sock,
-                                  const char *host, int port,
-                                  apr_pool_t *pool)
-{
-    apr_status_t rv;
-    apr_sockaddr_t *remoteSA;
-
-    printf("::Connecting socket\n");
-    rv = apr_sockaddr_info_get(&remoteSA, host, APR_UNSPEC, port, 0, pool);
-    if (rv != APR_SUCCESS) {
-        printf("\tFailed to get address for '%s', port %d\n", host, port);
-        return rv;
-    }
-    rv = apr_ssl_socket_connect(sock, remoteSA);
-    if (rv != APR_SUCCESS) {
-        printf("\tFailed to connect to '%s' port %d\n", host, port);
-        return rv;
-    }
-    printf("\tOK\n");
-    return rv;
-}
-
-static apr_status_t socketRead(apr_ssl_socket_t *sock,
-                               apr_pollset_t *pollset,
-                               char *buf, apr_size_t *len)
-{
-    int lrv;
-    const apr_pollfd_t *descs = NULL;
-    apr_status_t rv;
-
-    printf("::Reading from socket\n");
-    rv = apr_ssl_socket_set_poll_events(sock, APR_POLLIN);
-    if (rv != APR_SUCCESS) {
-        printf("\tUnable to change socket poll events!\n");
-        return rv;
-    }
-
-    rv = apr_pollset_poll(pollset, 30 * APR_USEC_PER_SEC, &lrv, &descs);
-    if (APR_STATUS_IS_TIMEUP(rv)) {
-        printf("\tTime up!\n");
-        return rv;
-    }
-
-    if (lrv != 1) {
-        printf("\tIncorrect return count, %d\n", lrv);
-        return rv;
-    }
-    if (descs[0].client_data != sock) {
-        printf("\tWrong socket returned?!\n");
-        return rv;
-    }
-    if ((descs[0].rtnevents & APR_POLLIN) == 0) {
-        printf("\tSocket wasn't ready? huh? req [%08x] vs rtn [%08x]\n",
-               descs[0].reqevents, descs[0].rtnevents);
-        return rv;
-    }
-    rv = apr_ssl_socket_recv(sock, buf, len);
-    if (rv == APR_SUCCESS)
-        printf("\tOK, read %d bytes\n", *len);
-    else
-        printf("\tFailed\n");
-    return rv;
-}
-
-static apr_status_t socketWrite(apr_ssl_socket_t *sock,
-                                apr_pollset_t *pollset,
-                                const char *buf, apr_size_t *len)
-{
-    int lrv;
-    const apr_pollfd_t *descs = NULL;
-    apr_status_t rv;
-
-    printf("::Writing to socket\n");
-    rv = apr_ssl_socket_set_poll_events(sock, APR_POLLOUT);
-    if (rv != APR_SUCCESS) {
-        printf("\tUnable to change socket poll events!\n");
-        return rv;
-    }
-
-    rv = apr_pollset_poll(pollset, 30 * APR_USEC_PER_SEC, &lrv, &descs);
-    if (APR_STATUS_IS_TIMEUP(rv)) {
-        printf("\tTime up!\n");
-        return rv;
-    }
-    if (lrv != 1) {
-        printf("\tIncorrect return count, %d\n", lrv);
-        return rv;
-    }
-    if (descs[0].client_data != sock) {
-        printf("\tWrong socket returned?!\n");
-        return rv;
-    }
-    if ((descs[0].rtnevents & APR_POLLOUT) == 0) {
-        printf("\tSocket wasn't ready? huh?\n");
-        return rv;
-    }
-    rv = apr_ssl_socket_send(sock, buf, len);
-    if (rv == APR_SUCCESS)
-        printf("\tOK, wrote %d bytes\n", *len);
-    else
-        printf("\tFailed\n");
-    return rv;
-}
-
-apr_status_t socketClose(apr_ssl_socket_t *sock, apr_pollset_t *pollset)
-{
-    apr_status_t rv;
-    printf("::Closing socket\n");
-    rv = apr_pollset_remove_ssl_socket(sock);
-    if (rv != APR_SUCCESS)
-        printf("\tUnable to remove socket from pollset?\n");
-    rv = apr_ssl_socket_close(sock);
-    if (rv != APR_SUCCESS)
-        printf("\tFailed to close SSL socket\n");
-    else
-        printf("\tOK\n");
-    return rv;
-}
-
-
-int main(int argc, const char * const * argv)
-{
-    apr_pool_t *pool;
-    apr_ssl_factory_t *asf = NULL;
-    apr_status_t rv;
-    apr_pollset_t *pollset;
-
-    (void) apr_initialize();
-    apr_pool_create(&pool, NULL);
-    atexit(apr_terminate);
-
-    printf("SSL Library: %s\n", apr_ssl_library_name());
-
-    if (apr_pollset_create(&pollset, 1, pool, 0) != APR_SUCCESS) {
-        printf("Failed to create pollset!\n");
-        exit(1);
-    }
-
-    if (apr_ssl_factory_create(&asf, NULL, NULL, NULL, 
-                               APR_SSL_FACTORY_CLIENT, pool) != APR_SUCCESS) {
-        fprintf(stderr, "Unable to create client factory\n");
-    } else {
-        int i;
-        for(i = 0; tests[i].host; i++) {
-            apr_ssl_socket_t *sslSock = createSocket(asf, pollset, pool, 0);
-            if (!sslSock)
-                continue;
-
-            rv = connectSocket(sslSock, tests[i].host, tests[i].port, pool);
-            if (rv == APR_SUCCESS) {
-                apr_size_t len = strlen(tests[i].request);
-                rv = socketWrite(sslSock, pollset, tests[i].request, &len);
-                if (rv == APR_SUCCESS) {
-                    char buffer[4096];
-                    len = 4096;
-                    rv = socketRead(sslSock, pollset, buffer, &len);
-                }
-            }
-            socketClose(sslSock, pollset);
-        }
-    }
-
-    apr_pollset_destroy(pollset);
-    apr_pool_destroy(pool);
-
-    return 0;
-}
-
-