Index: subversion/libsvn_subr/io.c
===================================================================
--- subversion/libsvn_subr/io.c	(revision 1062600)
+++ subversion/libsvn_subr/io.c	(working copy)
@@ -2786,6 +2786,7 @@ svn_io_file_open(apr_file_t **new_file, const char
   const char *fname_apr;
   apr_status_t status;
 
+  fprintf(stderr, "        ==== OPEN(%d) %s\n", flag, fname);
   SVN_ERR(cstring_from_utf8(&fname_apr, fname, pool));
   status = file_open(new_file, fname_apr, flag | APR_BINARY, perm, TRUE,
                      pool);