From 1021c9dbb6b89fbfe151960031028a25221fee67 Mon Sep 17 00:00:00 2001
From: Aman Gupta <aman@tmm1.net>
Date: Mon, 24 Jan 2011 15:29:35 -0800
Subject: [PATCH] Detect and work on ruby 1.9.1

---
 ext/perftools.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/perftools.c b/ext/perftools.c
index 33a4968..1c2f157 100644
--- a/ext/perftools.c
+++ b/ext/perftools.c
@@ -339,7 +339,7 @@ uc_get_ip(ucontext_t *uc) {
   return (char**)&uc->program_counter;
 }
 
-#ifdef RB_EVENT_HOOKS_HAVE_CALLBACK_DATA
+#if defined(RB_EVENT_HOOKS_HAVE_CALLBACK_DATA) || defined(RUBY_EVENT_VM)
 static void
 event_handler(rb_event_flag_t event, VALUE data, VALUE self, ID id, VALUE klass) {
   ProfilerRecord(0, NULL, NULL);
@@ -357,7 +357,7 @@ methprofiler_setup()
   if (bMethProfilerRunning)
     return Qtrue;
 
-#ifdef RB_EVENT_HOOKS_HAVE_CALLBACK_DATA
+#if defined(RB_EVENT_HOOKS_HAVE_CALLBACK_DATA) || defined(RUBY_EVENT_VM)
   rb_add_event_hook(event_handler, RUBY_EVENT_CALL|RUBY_EVENT_C_CALL, 0);
 #else
   rb_add_event_hook(event_handler, RUBY_EVENT_CALL|RUBY_EVENT_C_CALL);