Forward-ports r32775 from branches/ruby_1_9_3 to trunk.

--
* common.mk (ECHO1): nmake does not allow parenthesis in make variable
  replacement.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32783 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sun Jul 31 20:39:12 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* common.mk (ECHO1): nmake does not allow parenthesis in make variable
+	  replacement.
+
 Sun Jul 31 23:06:57 2011  Kazuki Tsujimoto  <kazuki@callcc.net>
 
 	* vm.c (check_env): print debug messages to stderr.

common.mk

@@ -8,7 +8,8 @@ dll: $(LIBRUBY_SO)
 V = 0
 Q1 = $(V:1=)
 Q = $(Q1:0=@)
-ECHO1 = $(V:1=@$(NULLCMD))
+n=$(NULLCMD)
+ECHO1 = $(V:1=@$n)
 ECHO = $(ECHO1:0=@echo)
 
 RUBYLIB       = -