diff --git a/Utilities/cmxmlrpc/CMakeLists.txt b/Utilities/cmxmlrpc/CMakeLists.txt
index 07f4a4264..bb878f732 100644
--- a/Utilities/cmxmlrpc/CMakeLists.txt
+++ b/Utilities/cmxmlrpc/CMakeLists.txt
@@ -47,6 +47,10 @@ SET(HAVE_LIBWWW_SSL)
 SET(DIRECTORY_SEPARATOR "/")
 
 FIND_PACKAGE(Threads)
+SET(HAVE_PTHREADS)
+IF(WIN32 OR CMAKE_USE_PTHREADS_INIT)
+  SET(HAVE_PTHREADS 1)
+ENDIF(WIN32 OR CMAKE_USE_PTHREADS_INIT)
 
 INCLUDE_DIRECTORIES(
   "${CMAKE_CURRENT_SOURCE_DIR}"
diff --git a/Utilities/cmxmlrpc/xmlrpc_authcookie.c b/Utilities/cmxmlrpc/xmlrpc_authcookie.c
index 83541b9a2..1da929f1e 100644
--- a/Utilities/cmxmlrpc/xmlrpc_authcookie.c
+++ b/Utilities/cmxmlrpc/xmlrpc_authcookie.c
@@ -51,7 +51,7 @@ void xmlrpc_authcookie_set ( xmlrpc_env *env,
     sprintf(unencoded, "%s:%s", username, password);
 
     /* Create encoded string. */
-    token = xmlrpc_base64_encode_without_newlines(env, unencoded,
+    token = xmlrpc_base64_encode_without_newlines(env, (unsigned char*)unencoded,
                                 strlen(unencoded));
     XMLRPC_FAIL_IF_FAULT(env);
 
diff --git a/Utilities/cmxmlrpc/xmlrpc_config.h.in b/Utilities/cmxmlrpc/xmlrpc_config.h.in
index fff0e9dcd..af637c359 100644
--- a/Utilities/cmxmlrpc/xmlrpc_config.h.in
+++ b/Utilities/cmxmlrpc/xmlrpc_config.h.in
@@ -30,6 +30,8 @@
 
 #define DIRECTORY_SEPARATOR "@DIRECTORY_SEPARATOR@"
 
+#cmakedefine HAVE_PTHREADS @HAVE_PTHREADS@
+
 /*  Xmlrpc-c code uses __inline__ to declare functions that should
     be compiled as inline code.  GNU C recognizes the __inline__ keyword.
     Others recognize 'inline' or '__inline' or nothing at all to say
diff --git a/Utilities/cmxmlrpc/xmlrpc_curl_transport.c b/Utilities/cmxmlrpc/xmlrpc_curl_transport.c
index e98353edb..c4a5e19b9 100644
--- a/Utilities/cmxmlrpc/xmlrpc_curl_transport.c
+++ b/Utilities/cmxmlrpc/xmlrpc_curl_transport.c
@@ -22,7 +22,10 @@
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
-#include "xmlrpc_pthreads.h"
+
+#if defined(HAVE_PTHREADS)
+#  include "xmlrpc_pthreads.h"
+#endif
 
 #include <curl/curl.h>
 #include <curl/types.h>
@@ -143,7 +146,6 @@ initWindowsStuff(xmlrpc_env * const envP) {
 }
 
 
-
 static void 
 create(xmlrpc_env *              const envP,
        int                       const flags ATTR_UNUSED,
@@ -163,7 +165,9 @@ create(xmlrpc_env *              const envP,
             envP, XMLRPC_INTERNAL_ERROR, 
             "Unable to allocate transport descriptor.");
     else {
+#ifdef HAVE_PTHREADS
         pthread_mutex_init(&transportP->listLock, NULL);
+#endif
         
         list_make_empty(&transportP->rpcList);
 
@@ -183,7 +187,6 @@ create(xmlrpc_env *              const envP,
 }
 
 
-
 static void
 termWindowStuff(void) {
 
@@ -203,7 +206,9 @@ destroy(struct clientTransport * const clientTransportP) {
 
     XMLRPC_ASSERT(list_is_empty(&clientTransportP->rpcList));
 
+#if defined(HAVE_PTHREADS)
     pthread_mutex_destroy(&clientTransportP->listLock);
+#endif
 
     curl_global_cleanup();
 
@@ -428,7 +433,7 @@ doAsyncRpc(void * arg) {
 #endif
 
 
-
+#if defined(HAVE_PTHREADS)
 static void
 createRpcThread(xmlrpc_env *              const envP,
                 rpc *                     const rpcP,
@@ -462,6 +467,7 @@ createRpcThread(xmlrpc_env *              const envP,
         break;
     }
 }
+#endif
 
 
 
@@ -493,15 +499,23 @@ rpcCreate(xmlrpc_env *             const envP,
                               &rpcP->curlTransactionP);
         if (!envP->fault_occurred) {
             if (complete) {
+#if defined(HAVE_PTHREADS)
                 createRpcThread(envP, rpcP, &rpcP->thread);
+#else 
+                abort();
+#endif
                 if (!envP->fault_occurred)
                     rpcP->threadExists = TRUE;
             }
             if (!envP->fault_occurred) {
                 list_init_header(&rpcP->link, rpcP);
+#if defined(HAVE_PTHREADS)
                 pthread_mutex_lock(&clientTransportP->listLock);
+#endif
                 list_add_head(&clientTransportP->rpcList, &rpcP->link);
+#if defined(HAVE_PTHREADS)
                 pthread_mutex_unlock(&clientTransportP->listLock);
+#endif
             }
             if (envP->fault_occurred)
                     destroyCurlTransaction(rpcP->curlTransactionP);
@@ -513,7 +527,6 @@ rpcCreate(xmlrpc_env *             const envP,
 }
 
 
-
 static void 
 rpcDestroy(rpc * const rpcP) {
 
@@ -573,7 +586,11 @@ finishRpc(struct list_head * const headerP,
         void *status;
         int result;
 
+#if defined(HAVE_PTHREADS)
         result = pthread_join(rpcP->thread, &status);
+#else
+        abort();
+#endif
         
         rpcP->threadExists = FALSE;
     }
@@ -601,11 +618,19 @@ finishAsynch(struct clientTransport * const clientTransportP ATTR_UNUSED,
        to set an alarm and interrupt running threads.
     */
 
+#if defined(HAVE_PTHREADS)
     pthread_mutex_lock(&clientTransportP->listLock);
+#else
+        abort();
+#endif
 
     list_foreach(&clientTransportP->rpcList, finishRpc, NULL);
 
+#if defined(HAVE_PTHREADS)
     pthread_mutex_unlock(&clientTransportP->listLock);
+#else
+        abort();
+#endif
 }
 
 
diff --git a/Utilities/cmxmlrpc/xmlrpc_pthreads.h b/Utilities/cmxmlrpc/xmlrpc_pthreads.h
index dfb29c7c9..31d4049a1 100644
--- a/Utilities/cmxmlrpc/xmlrpc_pthreads.h
+++ b/Utilities/cmxmlrpc/xmlrpc_pthreads.h
@@ -26,6 +26,10 @@
 #ifndef xmlrpc_pthreads_h_
 #define xmlrpc_pthreads_h_
 
+#if !defined(HAVE_PTHREADS)
+# error This system does not have PThreads
+#endif
+
 #ifndef WIN32
 #       define _REENTRANT
 #       include <pthread.h>
diff --git a/Utilities/cmxmlrpc/xmlrpc_transport.h b/Utilities/cmxmlrpc/xmlrpc_transport.h
index e84832f5d..1a451669a 100644
--- a/Utilities/cmxmlrpc/xmlrpc_transport.h
+++ b/Utilities/cmxmlrpc/xmlrpc_transport.h
@@ -6,7 +6,9 @@
 extern "C" {
 #endif
 
-#include "xmlrpc_pthreads.h" /* For threading helpers. */
+#if defined(HAVE_PTHREADS)
+#  include "xmlrpc_pthreads.h" /* For threading helpers. */
+#endif
 
 struct call_info;
 
@@ -67,6 +69,7 @@ struct clientTransportOps {
 **  Transport Helper Functions and declarations.
 **=========================================================================
 */
+#if defined(HAVE_PTHREADS)
 typedef struct _running_thread_info
 {
         struct _running_thread_info * Next;
@@ -90,6 +93,7 @@ void register_asynch_thread (running_thread_list *list, pthread_t *thread);
 /* MRB-WARNING: Only call when you have successfully
 **     acquired the Lock/Unlock mutex! */
 void unregister_asynch_thread (running_thread_list *list, pthread_t *thread);
+#endif
 
 
 #ifdef __cplusplus