diff -Nrbu mod_auth_ntlm_winbind/mod_auth_ntlm_winbind.c mod_auth_ntlm_winbind-OK/mod_auth_ntlm_winbind.c
--- mod_auth_ntlm_winbind/mod_auth_ntlm_winbind.c	2007-06-22 17:47:51.000000000 +0400
+++ mod_auth_ntlm_winbind-OK/mod_auth_ntlm_winbind.c	2007-06-22 17:47:20.000000000 +0400
@@ -495,7 +495,7 @@
     char *newline;
     char args_to_helper[HUGE_STRING_LEN];
     char args_from_helper[HUGE_STRING_LEN];
-    unsigned int bytes_written;
+    size_t bytes_written;
     int bytes_read;
 
     if (( global_ntlm_context.ntlm_plaintext_helper = get_auth_helper( r, global_ntlm_context.ntlm_plaintext_helper, crec->ntlm_plaintext_helper, CLEANUP(cleanup_ntlm_plaintext_helper))) == NULL ) {
@@ -539,7 +539,7 @@
 #endif
 
     if ( bytes_written < strlen( args_to_helper )) {
-        RDEBUG( "failed to write user/pass to helper - wrote %d bytes", bytes_written );
+        RDEBUG( "failed to write user/pass to helper - wrote %d bytes", (int) bytes_written );
         apr_pool_destroy( global_ntlm_context.ntlm_plaintext_helper->pool );
         apr_pool_destroy( ctxt->connected_user_authenticated->pool );
         return HTTP_INTERNAL_SERVER_ERROR;
@@ -624,7 +624,7 @@
     char args_to_helper[HUGE_STRING_LEN];
     char args_from_helper[HUGE_STRING_LEN];
     ntlm_connection_context_t *ctxt = get_connection_context( r->connection );
-    unsigned int bytes_written;
+    size_t bytes_written;
     int bytes_read;
     struct _ntlm_auth_helper *auth_helper;
 
@@ -690,7 +690,7 @@
     bytes_written = ap_bwrite(auth_helper->out_to_helper, args_to_helper, strlen(args_to_helper));
 #endif
     if (bytes_written < strlen(args_to_helper)) {
-        RDEBUG("failed to write NTLMSSP string to helper - wrote %d bytes", bytes_written);
+        RDEBUG("failed to write NTLMSSP string to helper - wrote %d bytes", (int) bytes_written);
         apr_pool_destroy(auth_helper->pool);
         apr_pool_destroy(ctxt->connected_user_authenticated->pool);