fix FLAVOR=editline build on llvm 22 by backporting upstream commit to

pass correct pointer types to el_gets(). bonus fix for gcc 15 while
there which I happened to notice.

plan9/rc/Makefile

@@ -1,7 +1,7 @@
 COMMENT=	shell (clone of plan9 shell)
 
 DISTNAME=	rc-1.7.4
-REVISION=	1
+REVISION=	2
 CATEGORIES=	plan9 shells
 SITES=		http://static.tobold.org/rc/
 

plan9/rc/patches/patch-edit-edit_c

@@ -0,0 +1,26 @@
+From 6c9b748f309753f86bae1632c71b8992294894c1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Bert=20M=C3=BCnnich?= <xyb3rt@gmail.com>
+Date: Sun, 11 Jun 2023 18:45:47 +0200
+Subject: [PATCH] Fix type of pointer passed to el_gets()
+
+Index: edit-edit.c
+--- edit-edit.c.orig
++++ edit-edit.c
+@@ -43,6 +43,7 @@ static void edit_catcher(int sig) {
+ }
+ 
+ char *edit_alloc(void *cookie, size_t *count) {
++	int len = 0;
+ 	const char *r;
+ 	HistEvent he;
+ 	struct cookie *c = cookie;
+@@ -51,7 +52,8 @@ char *edit_alloc(void *cookie, size_t *count) {
+ 	oldint = sys_signal(SIGINT, edit_catcher);
+ 	oldquit = sys_signal(SIGQUIT, edit_catcher);
+ 
+-	r = el_gets(c->el, count);
++	r = el_gets(c->el, &len);
++	*count = len;
+ 
+ 	sys_signal(SIGINT, oldint);
+ 	sys_signal(SIGQUIT, oldquit);

plan9/rc/patches/patch-edit-editline_c

@@ -0,0 +1,26 @@
+From 6c9b748f309753f86bae1632c71b8992294894c1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Bert=20M=C3=BCnnich?= <xyb3rt@gmail.com>
+Date: Sun, 11 Jun 2023 18:45:47 +0200
+Subject: [PATCH] Fix type of pointer passed to el_gets()
+
+Index: edit-editline.c
+--- edit-editline.c.orig
++++ edit-editline.c
+@@ -39,6 +39,7 @@ static void edit_catcher(int sig) {
+ char *edit_alloc(void *cookie, size_t *count) {
+ 	struct cookie *c = cookie;
+ /*
++	int len = 0;
+ 	const char *r;
+ 	HistEvent he;
+ 	struct cookie *c = cookie;
+@@ -47,7 +48,8 @@ char *edit_alloc(void *cookie, size_t *count) {
+ 	oldint = sys_signal(SIGINT, edit_catcher);
+ 	oldquit = sys_signal(SIGQUIT, edit_catcher);
+ 
+-	r = el_gets(c->el, count);
++	r = el_gets(c->el, &len);
++	*count = len;
+ 
+ 	sys_signal(SIGINT, oldint);
+ 	sys_signal(SIGQUIT, oldquit);

plan9/rc/patches/patch-edit-vrl_c

@@ -0,0 +1,26 @@
+From 6c9b748f309753f86bae1632c71b8992294894c1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Bert=20M=C3=BCnnich?= <xyb3rt@gmail.com>
+Date: Sun, 11 Jun 2023 18:45:47 +0200
+Subject: [PATCH] Fix type of pointer passed to el_gets()
+
+Index: edit-vrl.c
+--- edit-vrl.c.orig
++++ edit-vrl.c
+@@ -42,6 +42,7 @@ static void edit_catcher(int sig) {
+ char *edit_alloc(void *cookie, size_t *count) {
+ 	struct cookie *c = cookie;
+ /*
++	int len = 0;
+ 	const char *r;
+ 	HistEvent he;
+ 	struct cookie *c = cookie;
+@@ -50,7 +51,8 @@ char *edit_alloc(void *cookie, size_t *count) {
+ 	oldint = sys_signal(SIGINT, edit_catcher);
+ 	oldquit = sys_signal(SIGQUIT, edit_catcher);
+ 
+-	r = el_gets(c->el, count);
++	r = el_gets(c->el, &len);
++	*count = len;
+ 
+ 	sys_signal(SIGINT, oldint);
+ 	sys_signal(SIGQUIT, oldquit);

plan9/rc/patches/patch-rc_h

@@ -0,0 +1,23 @@
+From 429f81caf8af998e59075c86b777b2ecef7956cf Mon Sep 17 00:00:00 2001
+From: Jacob Mealey <jacobmealey.maine@gmail.com>
+Date: Sun, 28 Sep 2025 20:14:18 -0400
+Subject: [PATCH] Fix build for gcc 15
+
+Index: rc.h
+--- rc.h.orig
++++ rc.h
+@@ -44,9 +44,14 @@ typedef enum ecodes {
+ 	eError, eBreak, eReturn, eVarstack, eArena, eFifo, eFd
+ } ecodes;
+ 
++#if __STDC_VERSION__ >= 202311L
++#define FALSE false
++#define TRUE true
++#else
+ typedef enum bool {
+ 	FALSE, TRUE
+ } bool;
++#endif
+ 
+ typedef enum redirtype {
+ 	rFrom, rCreate, rAppend, rHeredoc, rHerestring