games-mud/tf: fix implicit function decls. (Clang 16+)

There's other code quality issues but there's so many of these
bugs that we need to just keep moving forward for now, e.g.
```
 * socket.c:2657:27: warning: assignment to ‘String *’ from incompatible pointer type ‘conString *’ [-Wincompatible-pointer-types]
```

Closes: https://bugs.gentoo.org/871084
Signed-off-by: Sam James <sam@gentoo.org>

games-mud/tf/files/tf-5.0_beta8_p8-Fix-implicit-function-declarations.patch

@@ -0,0 +1,26 @@
+From f0cf80b3034c4cad66608ddcec0709b3761adbfc Mon Sep 17 00:00:00 2001
+From: Sam James <sam@gentoo.org>
+Date: Sun, 2 Oct 2022 20:31:30 +0100
+Subject: [PATCH] Fix implicit function declarations
+
+Bug: https://bugs.gentoo.org/871084
+--- a/src/malloc.h
++++ b/src/malloc.h
+@@ -34,6 +34,7 @@ extern int low_memory_warning;
+ # define realloc(ptr, size)		mrealloc(NULL, ptr, size)
+ # define free(ptr)			mfree(NULL, ptr)
+ #else
++# include <stdlib.h>
+ # define mmalloc(md, size)		malloc(size)
+ # define mcalloc(md, size)		calloc(size)
+ # define mrealloc(md, ptr, size)	realloc(ptr, size)
+--- a/src/tfio.c
++++ b/src/tfio.c
+@@ -46,6 +46,7 @@ static const char RCSid[] = "$Id: tfio.c,v 35004.114 2007/01/13 23:12:39 kkeys E
+ #include "keyboard.h"	/* keyboard_pos */
+ #include "expand.h"	/* current_command */
+ #include "cmdlist.h"
++#include "socket.h"
+ 
+ TFILE *loadfile = NULL; /* currently /load'ing file */
+ int loadline = 0;       /* line number in /load'ing file */

games-mud/tf/tf-5.0_beta8_p8-r1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -37,6 +37,7 @@ PATCHES=(
 	"${DISTDIR}"/tf-allrootpatch.txt
 	"${DISTDIR}"/tf-allsrcpatch.txt
 	"${FILESDIR}"/tf-50_beta8-pcre.patch
+	"${FILESDIR}"/tf-5.0_beta8_p8-Fix-implicit-function-declarations.patch
 )
 
 src_configure() {