Index: subversion/libsvn_subr/ssl_client_cert_pw_providers.c
===================================================================
--- subversion/libsvn_subr/ssl_client_cert_pw_providers.c	(revision 34606)
+++ subversion/libsvn_subr/ssl_client_cert_pw_providers.c	(working copy)
@@ -475,7 +475,7 @@
                                            SVN_AUTH_PARAM_NO_AUTH_CACHE,
                                            APR_HASH_KEY_STRING);
 
-  if (ib->retries >= ib->pb->retry_limit)
+  if ((ib->pb->retry_limit >= 0) && (ib->retries >= ib->pb->retry_limit))
     {
       /* give up, go on to next provider. */
       *credentials_p = NULL;
Index: subversion/libsvn_subr/ssl_client_cert_providers.c
===================================================================
--- subversion/libsvn_subr/ssl_client_cert_providers.c	(revision 34606)
+++ subversion/libsvn_subr/ssl_client_cert_providers.c	(working copy)
@@ -164,7 +164,7 @@
                                            SVN_AUTH_PARAM_NO_AUTH_CACHE,
                                            APR_HASH_KEY_STRING);
 
-  if (ib->retries >= ib->pb->retry_limit)
+  if ((ib->pb->retry_limit >= 0) && (ib->retries >= ib->pb->retry_limit))
     {
       /* give up, go on to next provider. */
       *credentials_p = NULL;
Index: subversion/libsvn_subr/username_providers.c
===================================================================
--- subversion/libsvn_subr/username_providers.c	(revision 34606)
+++ subversion/libsvn_subr/username_providers.c	(working copy)
@@ -265,7 +265,7 @@
                                            SVN_AUTH_PARAM_NO_AUTH_CACHE,
                                            APR_HASH_KEY_STRING);
 
-  if (ib->retries >= pb->retry_limit)
+  if ((pb->retry_limit >= 0) && (ib->retries >= pb->retry_limit))
     {
       /* give up, go on to next provider. */
       *credentials_p = NULL;
Index: subversion/libsvn_subr/simple_providers.c
===================================================================
--- subversion/libsvn_subr/simple_providers.c	(revision 34606)
+++ subversion/libsvn_subr/simple_providers.c	(working copy)
@@ -697,7 +697,7 @@
                                            SVN_AUTH_PARAM_NO_AUTH_CACHE,
                                            APR_HASH_KEY_STRING);
 
-  if (ib->retries >= pb->retry_limit)
+  if ((pb->retry_limit >= 0) && (ib->retries >= pb->retry_limit))
     {
       /* give up, go on to next provider. */
       *credentials_p = NULL;
Index: subversion/include/svn_client.h
===================================================================
--- subversion/include/svn_client.h	(revision 34606)
+++ subversion/include/svn_client.h	(working copy)
@@ -102,6 +102,7 @@
  * default arguments when svn_auth_first_credentials() is called.  If
  * svn_auth_first_credentials() fails, then @a *provider will
  * re-prompt @a retry_limit times (via svn_auth_next_credentials()).
+ * For infinite retries, set @a retry_limit to value less than 0.
  *
  * @deprecated Provided for backward compatibility with the 1.3 API.
  * Use svn_auth_get_simple_prompt_provider() instead.
@@ -126,6 +127,7 @@
  * default argument when svn_auth_first_credentials() is called.  If
  * svn_auth_first_credentials() fails, then @a *provider will
  * re-prompt @a retry_limit times (via svn_auth_next_credentials()).
+ * For infinite retries, set @a retry_limit to value less than 0.
  *
  * @deprecated Provided for backward compatibility with the 1.3 API.
  * Use svn_auth_get_username_prompt_provider() instead.
@@ -284,6 +286,7 @@
  * and @a prompt_baton.  The returned credential is used to load the
  * appropriate client certificate for authentication when requested by
  * a server.  The prompt will be retried @a retry_limit times.
+ * For infinite retries, set @a retry_limit to value less than 0.
  *
  * @deprecated Provided for backward compatibility with the 1.3 API.
  * Use svn_auth_get_ssl_client_cert_prompt_provider() instead.
@@ -304,7 +307,8 @@
  * @a *provider retrieves its credentials by using the @a prompt_func
  * and @a prompt_baton.  The returned credential is used when a loaded
  * client certificate is protected by a passphrase.  The prompt will
- * be retried @a retry_limit times.
+ * be retried @a retry_limit times. For infinite retries, set @a retry_limit
+ * to value less than 0.
  *
  * @deprecated Provided for backward compatibility with the 1.3 API.
  * Use svn_auth_get_ssl_client_cert_pw_prompt_provider() instead.
Index: subversion/include/svn_auth.h
===================================================================
--- subversion/include/svn_auth.h	(revision 34606)
+++ subversion/include/svn_auth.h	(working copy)
@@ -706,6 +706,7 @@
  * default arguments when svn_auth_first_credentials() is called.  If
  * svn_auth_first_credentials() fails, then @a *provider will
  * re-prompt @a retry_limit times (via svn_auth_next_credentials()).
+ * For infinite retries, set @a retry_limit to value less than 0.
  *
  * @since New in 1.4.
  */
@@ -727,6 +728,7 @@
  * default argument when svn_auth_first_credentials() is called.  If
  * svn_auth_first_credentials() fails, then @a *provider will
  * re-prompt @a retry_limit times (via svn_auth_next_credentials()).
+ * For infinite retries, set @a retry_limit to value less than 0.
  *
  * @since New in 1.4.
  */
@@ -1122,7 +1124,8 @@
  * @a *provider retrieves its credentials by using the @a prompt_func
  * and @a prompt_baton.  The returned credential is used to load the
  * appropriate client certificate for authentication when requested by
- * a server.  The prompt will be retried @a retry_limit times.
+ * a server.  The prompt will be retried @a retry_limit times. For
+ * infinite retries, set @a retry_limit to value less than 0.
  *
  * @since New in 1.4.
  */
@@ -1141,7 +1144,8 @@
  * @a *provider retrieves its credentials by using the @a prompt_func
  * and @a prompt_baton.  The returned credential is used when a loaded
  * client certificate is protected by a passphrase.  The prompt will
- * be retried @a retry_limit times.
+ * be retried @a retry_limit times. For infinite retries, set
+ * @a retry_limit to value less than 0.
  *
  * @since New in 1.4.
  */