diff --git a/ChangeLog b/ChangeLog
index 03fd1aa9a0..439280d822 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Aug 10 11:02:58 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (extconf): use MAKEDIRS.
+
 Sun Aug 10 09:35:12 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* lib/irb.rb (IRB::Irb#inspect): instance_variables returns symbols
diff --git a/Makefile.in b/Makefile.in
index cdbad6d588..da742b1a34 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -88,6 +88,7 @@ SETUP         =
 EXTSTATIC     = @EXTSTATIC@
 SET_LC_MESSAGES = env LC_MESSAGES=C
 
+MAKEDIRS      = @MAKEDIRS@
 CP            = cp
 MV            = mv
 RM            = rm -f
diff --git a/common.mk b/common.mk
index 5b9f271c14..79ebf92c1d 100644
--- a/common.mk
+++ b/common.mk
@@ -368,7 +368,7 @@ test-all:
 	$(RUNRUBY) "$(srcdir)/test/runner.rb" --basedir="$(TESTSDIR)" --runner=$(TESTUI) $(TESTS)
 
 extconf: $(PREP)
-	$(MINIRUBY) -run -e mkdir -- -p "$(EXTCONFDIR)"
+	$(MAKEDIRS) "$(EXTCONFDIR)"
 	$(RUNRUBY) -C "$(EXTCONFDIR)" $(EXTCONF) $(EXTCONFARGS)
 
 $(RBCONFIG): $(srcdir)/mkconfig.rb config.status $(PREP)