2 files changed, 9 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 62723b979f..03168b84e6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Dec 23 01:58:20 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* regexec.c (USE_DIRECT_THREADED_VM): enable direct threaded VM by
+	  the default.
+
 Tue Dec 22 22:15:53 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* gc.c (internal_object_p): should not expose singleton classes
diff --git a/regexec.c b/regexec.c
index 412e4a1f47..e6a89cac56 100644
--- a/regexec.c
+++ b/regexec.c
@@ -32,6 +32,10 @@
 
 /* #define USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE */
 
+#ifndef USE_DIRECT_THREADED_VM
+#define USE_DIRECT_THREADED_VM 1
+#endif
+
 #ifdef USE_CRNL_AS_LINE_TERMINATOR
 #define ONIGENC_IS_MBC_CRNL(enc,p,end) \
   (ONIGENC_MBC_TO_CODE(enc,p,end) == 13 && \