Support Ruby 2.2

.travis.yml

@@ -1,5 +1,6 @@
 language: ruby
 rvm:
+  - 2.2.0-rc1
   - 2.1.2
   - 2.0.0
   - 1.9.3

ext/qml/extconf.rb

@@ -91,7 +91,10 @@ def configure_extension
     end
     $CPPFLAGS += " -DHAVE_RUBY_THREAD_H" if have_header('ruby/thread.h')
 
-    $CPPFLAGS += " -std=c++11 -Wall -Wextra -pipe"
+    have_func('rb_rational_num')
+    have_func('rb_rational_den')
+
+    $CPPFLAGS += " -std=c++11 -Wall -Wextra -pipe -Wno-reserved-user-defined-literal"
     if @debug_enabled
       $CPPFLAGS += " -O0 -ggdb3"
     else

ext/qml/rubyvalue.cpp

@@ -17,6 +17,24 @@
 #include <QSet>
 #include <QJSValue>
 
+#ifndef HAVE_RB_RATIONAL_NUM
+
+VALUE rb_rational_num(VALUE rat)
+{
+  return RRATIONAL(rat)->num;
+}
+
+#endif
+
+#ifndef HAVE_RB_RATIONAL_DEN
+
+VALUE rb_rational_den(VALUE rat)
+{
+  return RRATIONAL(rat)->den;
+}
+
+#endif
+
 namespace RubyQml {
 
 namespace detail {
@@ -152,7 +170,7 @@ template <> QDateTime Conversion<QDateTime>::from(RubyValue time)
         offset = time.send(RUBYQML_INTERN("gmt_offset")).to<int>();
     } else { // DateTime
         VALUE dayOffset = time.send(RUBYQML_INTERN("offset"));
-        offset = RubyValue(RRATIONAL(dayOffset)->num).to<int>() * 24 * 60 * 60 / RubyValue(RRATIONAL(dayOffset)->den).to<int>();
+        offset = RubyValue(rb_rational_num(dayOffset)).to<int>() * 24 * 60 * 60 / RubyValue(rb_rational_den(dayOffset)).to<int>();
         time = time.send(RUBYQML_INTERN("to_time"));
     }
     timeval at = rb_time_timeval(time);