Rationalised use of #includes to be more standards-compliant.

util/ceg/as_parser/eval/eval.c

@@ -1,3 +1,4 @@
+#include <stdlib.h>
 #include <stdio.h>
 #include <ctype.h>
 #include "states.h"

util/ceg/as_parser/help.c

@@ -1,3 +1,6 @@
+#include <stdlib.h>
+#include <string.h>
+
 #if __STDC__
 #include <stdarg.h>
 extern out(char *, ...);

util/ceg/as_parser/pars.g

@@ -38,6 +38,8 @@
  */
 
 {
+#include <stdlib.h>
+#include <string.h>
 
 #include "decl.h"
 extern int lineno, yyleng;