Quick amd64bit fix

src/xspice/cmpp/ifs_yacc.y

@@ -43,6 +43,7 @@ NON-STANDARD FEATURES
 ============================================================================*/
 
 #include <assert.h>
+#include <stdlib.h>
 #include "ifs_yacc.h"
 
 extern int yylineno;

src/xspice/cmpp/pp_lst.c

@@ -50,11 +50,9 @@ NON-STANDARD FEATURES
 #include  "cmpp.h"
 #include  <ctype.h>
 #include  <string.h>
+#include  <stdlib.h>
 
 
-void    *malloc(unsigned size);
-void    *realloc(void *ptr, unsigned size);
-
 /* *********************************************************************** */
 
 /*