Eliminate warnings from function prototype mismatches. Include

stdlib.h and strings.h where needed to get system/compiler definitions
of malloc, bcopy, and bzero instead of relying on 20-year-old wrong
definitions in the code.  The snobol interpreter itself is chock full
of pointer to int type punning and is likely to fail in hard-to-debug
ways on non-VAX-like architectures.

lang/snobol/files/patch-dynamic.c

@@ -0,0 +1,18 @@
+--- lib/generic/dynamic.c.orig	Tue Nov 28 00:09:54 2006
++++ lib/generic/dynamic.c	Tue Nov 28 00:10:30 2006
+@@ -2,13 +2,13 @@
+ 
+ /* allocate dynamic region */
+ 
+-char *malloc();
++#include <stdlib.h>
+ 
+ char *
+ dynamic( size )
+     int size;
+ {
+-    return malloc(size);
++    return (char *) malloc(size);
+ }
+ 
+ void

lang/snobol/files/patch-init.c

@@ -0,0 +1,18 @@
+--- lib/init.c.orig	Tue Nov 28 00:05:18 2006
++++ lib/init.c	Tue Nov 28 00:06:02 2006
+@@ -1,6 +1,7 @@
+ /* $Id: init.c,v 1.31 1997/07/07 03:40:34 phil Exp $ */
+ 
+ #include <stdio.h>			/* for usage! */
++#include <stdlib.h>
+ #include <signal.h>
+ 
+ #include "h.h"
+@@ -17,7 +18,6 @@
+ #endif
+ 
+ extern char *dynamic();
+-extern char *malloc();
+ 
+ #define NDYNAMIC 25000			/* default dynamic region size */
+ 

lang/snobol/files/patch-macros.h

@@ -0,0 +1,29 @@
+--- include/macros.h.orig	Fri Jul 25 14:52:56 1997
++++ include/macros.h	Tue Nov 28 00:26:54 2006
+@@ -4,6 +4,8 @@
+  * macros for data access and implementation of SIL ops
+  */
+ 
++#include <strings.h>
++
+ /* descriptor at address x */
+ #define D(x)	(*(struct descr *)(x))
+ 
+@@ -32,7 +34,7 @@
+ #endif /* DCMP_BYTES not defined */
+ 
+ /* clear B+1 descriptor block */
+-#define ZERBLK(A,B) bzero(A, (B)+DESCR)
++#define ZERBLK(A,B) bzero((void *)A, (B)+DESCR)
+ 
+ /*
+  * copy descriptor block
+@@ -40,7 +42,7 @@
+  * NOTE: may overlap!!
+  * (bcopy deals with this but some memcpy's do not)!!!
+  */
+-#define MOVBLK(A,B,C) bcopy( (B)+DESCR, (A)+DESCR, (C) )
++#define MOVBLK(A,B,C) bcopy( ((char *)B)+DESCR, ((char *)A)+DESCR, (C) )
+ 
+ /****************
+  * string specifiers (qualifiers)

lang/snobol/files/patch-ordvst.c

@@ -0,0 +1,19 @@
+--- lib/ordvst.c.orig	Tue Nov 28 00:06:26 2006
++++ lib/ordvst.c	Tue Nov 28 00:06:50 2006
+@@ -14,14 +14,14 @@
+  *
+  */
+ 
++#include <stdlib.h>
++
+ #include "h.h"
+ #include "snotypes.h"
+ #include "macros.h"
+ #include "equ.h"
+ #include "res.h"
+ #include "data.h"
+-
+-char *malloc();
+ 
+ #ifdef ORDVST_DEBUG
+ /* PLB: dump a descriptor */

lang/snobol/files/patch-retstring.c

@@ -0,0 +1,18 @@
+--- lib/snolib/retstring.c.orig	Sun Jul  6 20:48:22 1997
++++ lib/snolib/retstring.c	Tue Nov 28 00:12:09 2006
+@@ -1,5 +1,7 @@
+ /* $Id: retstring.c,v 1.3 1997/07/07 03:48:18 phil Exp $ */
+ 
++#include <stdlib.h>
++
+ #include "h.h"
+ #include "equ.h"			/* BCDFLD, etc */
+ #include "snotypes.h"			/* DESCR, etc */
+@@ -14,7 +16,6 @@
+     static struct spec sp[1];
+     static char *retbuf;
+     static int retbuflen;
+-    extern char *malloc();
+ 
+     if (len > retbuflen) {
+ 	if (retbuf)