switch build system to rscons v2.0.0

parser/parser.ll

@@ -8,7 +8,7 @@
 
 #include "nodes.h"
 #include "parser.h"
-#include "parser.tab.hh"
+#include "parser.hh"
 
 #define YY_USER_ACTION yylloc->first_column += yyleng;
 

parser/parser.yy

@@ -8,7 +8,7 @@
 #include "util/Scope.h"
 #include "nodes.h"
 #include "parser.h"
-#include "parser.tab.hh"        /* bison-generated header with YY[SL]TYPE */
+#include "parser.hh" /* bison-generated header with YY[SL]TYPE */
 using namespace std;
 
 #define yyerror(msg) errFunc(msg, &yylloc)