nobu	2016-06-09 16:37:29 +0900 (Thu, 09 Jun 2016)

  New Revision: 55340

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=55340

  Log:
    common.mk: fix win32/ifchange.bat usage
    
    * common.mk: win32/ifchange.bat does not support input from stdin.
      also needs quotes to escape an equal sign.

  Modified files:
    trunk/common.mk
Index: common.mk
===================================================================
--- common.mk	(revision 55339)
+++ common.mk	(revision 55340)
@@ -628,8 +628,8 @@ $(RBCONFIG): $(srcdir)/tool/mkconfig.rb https://github.com/ruby/ruby/blob/trunk/common.mk#L628
 		-cross_compiling=$(CROSS_COMPILING) \
 		-arch=$(arch) -version=$(RUBY_PROGRAM_VERSION) \
 		-install_name=$(RUBY_INSTALL_NAME) \
-		-so_name=$(RUBY_SO_NAME) | \
-	$(IFCHANGE) --timestamp=$@ rbconfig.rb -
+		-so_name=$(RUBY_SO_NAME) > rbconfig.tmp
+	$(IFCHANGE) "--timestamp=$@" rbconfig.rb rbconfig.tmp
 
 test-rubyspec-precheck:
 

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