pass ARGV to main.rb; catch bootstrapping exceptions

runtime/main.rb

@@ -1 +1,6 @@
+def main
   puts "hi from main.rb"
+  p ARGV
+end
+
+main

src/main.cc

@@ -6,6 +6,14 @@ using namespace std;
 
 RUBY_GLOBAL_SETUP
 
+static void handle_bootstrap_error()
+{
+    VALUE e = rb_errinfo();
+    VALUE s = rb_funcall(e, rb_intern("message"), 0);
+    fprintf(stderr, "%s\n", StringValueCStr(s));
+    rb_set_errinfo(Qnil);
+}
+
 static int bootstrap()
 {
     int rv = 0;
@@ -15,10 +23,7 @@ static int bootstrap()
       &err_state);
     if (err_state != 0)
     {
-        VALUE e = rb_errinfo();
+        handle_bootstrap_error();
-        VALUE s = rb_funcall(e, rb_intern("message"), 0);
-        fprintf(stderr, "%s\n", StringValueCStr(s));
-        rb_set_errinfo(Qnil);
         rv = 1;
     }
     return rv;
@@ -37,6 +42,7 @@ int main(int argc, char *argv[])
         ruby_init();
         ruby_init_loadpath();
         ruby_script(argv[0]);
+        ruby_set_argv(argc, argv);
         rv = bootstrap();
         ruby_finalize();
     }