The function orte_iof_base_setup_prefork attempts to create a pty for

child stdout and falls back to plain pipe if openpty fails. Child uses
the 'usepty' flag to decide whether to treat this descriptor as a pty
or as a pipe.
Set 'usepty' flag to 0 upon openpty failure to inform the child that
it isn't dealing with a pty even though pty has been requested.


Thanks to Michal Peclo for reporting it and providing a patch.

cmr:v1.7.3:reviewer=jsquyres
cmr:v1.6.6:reviewer=jsquyres

This commit was SVN r29169.

orte/mca/iof/base/iof_base_setup.c

@@ -94,6 +94,7 @@ orte_iof_base_setup_prefork(orte_iof_base_io_conf_t *opts)
 #endif
 
     if (ret < 0) {
+        opts->usepty = 0;
         if (pipe(opts->p_stdout) < 0) {
             ORTE_ERROR_LOG(ORTE_ERR_SYS_LIMITS_PIPES);
             return ORTE_ERR_SYS_LIMITS_PIPES;