fix obscure signal-handling bugs

add readline support

PR:		43945
Submitted by:	maintainer

shells/es/Makefile

@@ -7,7 +7,7 @@
 
 PORTNAME=	es
 PORTVERSION=	0.9.b1
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	shells
 MASTER_SITES=	ftp://ftp.sys.toronto.edu/pub/es/
 DISTNAME=	es-0.9-beta1
@@ -15,6 +15,7 @@ DISTNAME=	es-0.9-beta1
 MAINTAINER=	ljrittle@acm.org
 
 GNU_CONFIGURE=	yes
+CONFIGURE_ARGS= --with-readline
 
 ALL_TARGET=	es
 MAN1=		es.1

shells/es/files/patch-prim-ctl.c

@@ -0,0 +1,14 @@
+--- prim-ctl.c.orig	Sat Apr 12 04:54:34 1997
++++ prim-ctl.c	Sat Oct 12 23:33:16 2002
+@@ -77,8 +77,10 @@
+ 				if (termeq(fromcatcher->term, "retry")) {
+ 					retry = TRUE;
+ 					unblocksignals();
+-				} else
++				} else {
++					unblocksignals();
+ 					throw(fromcatcher);
++				}
+ 			EndExceptionHandler
+ 
+ 		EndExceptionHandler

shells/es/files/patch-signal.c

@@ -0,0 +1,11 @@
+--- signal.c.orig	Sat Apr 12 04:54:37 1997
++++ signal.c	Sat Oct 12 23:33:16 2002
+@@ -68,7 +68,7 @@
+ 
+ /* catcher -- catch (and defer) a signal from the kernel */
+ static void catcher(int sig) {
+-#if !SYSV_SIGNALS /* only do this for unreliable signals */
++#if SYSV_SIGNALS /* only do this for unreliable signals */
+ 	signal(sig, catcher);
+ #endif
+ 	if (hasforked)