added stdlib and string includes to keep stricter compilers happy..

datadec.c

@@ -18,7 +18,9 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+
 #include "struct.h"
 #include "lexer.h"
 #include "parser.h"

decs.c

 #include <stdio.h>
+#include <stdlib.h>
+
 #include "struct.h"
 #include "decs.h"
 

lexer.c

@@ -16,7 +16,10 @@
  
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <ctype.h>
+
 #include "struct.h"
 #include "lexer.h"
 

optimize.c

@@ -2,7 +2,9 @@
 
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+
 #include "struct.h"
 #include "optimize.h"
 

struct.c

@@ -16,7 +16,10 @@
 
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <malloc.h>
+
 #include "struct.h"
 
 #define Puts(s)	fputs(s,stdout)