Developed in-house but accepted upstream.

--- tcsh-6.19.00/sh.sem.c.orig Sat Oct 31 10:58:21 2015

+++ tcsh-6.19.00/sh.sem.c Sat Oct 31 10:59:42 2015

@@ -212,8 +212,14 @@

* If noexec then this is all we do.

*/

if (t->t_dflg & F_READ) {

+ int old_pintr_disabled;

+

xclose(0);

+ if (setintr)

+ pintr_push_enable(&old_pintr_disabled);

heredoc(t->t_dlef);

+ if (setintr)

+ cleanup_until(&old_pintr_disabled);

if (noexec)

xclose(0);

}