diff -urN mksh.org/funcs.c mksh/funcs.c
--- mksh.org/funcs.c	2020-08-27 21:53:11.000000000 +0200
+++ mksh/funcs.c	2023-10-05 19:06:16.456613978 +0200
@@ -98,7 +98,6 @@
 	{Tsgbreak, c_brkcont},
 	{T__builtin, c_builtin},
 	{Tbuiltin, c_builtin},
-	{Tbcat, c_cat},
 	{Tcd, c_cd},
 	/* dash compatibility hack */
 	{"chdir", c_cd},
@@ -152,9 +151,6 @@
 #ifdef MKSH_PRINTF_BUILTIN
 	{"~printf", c_printf},
 #endif
-#if HAVE_SELECT
-	{"sleep", c_sleep},
-#endif
 #ifdef __MirBSD__
 	/* alias to "true" for historical reasons */
 	{"domainname", c_true},
From 2f8a1b53b98c24c6506afdf1dd272febd49e65d2 Mon Sep 17 00:00:00 2001
From: tg <tg@mirbsd.org>
Date: Sun, 24 Jan 2021 19:41:07 +0000
Subject: [PATCH] fix builtin removal-related fuckup

---
 check.t | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/check.t b/check.t
index f22cf367a..c6e25d712 100644
--- a/check.t
+++ b/check.t
@@ -150,9 +150,8 @@ name: selftest-direct-builtin-call
 description:
 	Check that direct builtin calls work
 stdin:
-	ln -s "$__progname" cat || cp "$__progname" cat
 	ln -s "$__progname" echo || cp "$__progname" echo
-	./echo -c 'echo  foo' | ./cat -u
+	./echo -c 'echo  foo'
 expected-stdout:
 	-c echo  foo
 ---