nobu	2018-02-04 18:13:19 +0900 (Sun, 04 Feb 2018)

  New Revision: 62194

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=62194

  Log:
    use ifchange tool for rb_mjit_header.h
    
    * Makefile.in, win32/Makefile.sub (rb_mjit_header.h): use ifchange
      tool.  cmp command is not available on Windows.

  Modified files:
    trunk/Makefile.in
    trunk/win32/Makefile.sub
Index: win32/Makefile.sub
===================================================================
--- win32/Makefile.sub	(revision 62193)
+++ win32/Makefile.sub	(revision 62194)
@@ -1189,7 +1189,7 @@ probes.h: {$(VPATH)}probes.dmyh https://github.com/ruby/ruby/blob/trunk/win32/Makefile.sub#L1189
 rb_mjit_header.h: PHONY probes.h
 	$(ECHO) building $@
 	$(Q) $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -DMJIT_HEADER $(srcdir)/vm.c -P
-	$(Q) (cmp vm.i $@ && $(ECHO0) $@ unchanged && $(RM) vm.i) || $(MV) vm.i $@
+	$(Q) $(IFCHANGE) $@ vm.i
 
 $(MJIT_MIN_HEADER): rb_mjit_header.h $(srcdir)/tool/transform_mjit_header.rb
 	$(ECHO) building $@
Index: Makefile.in
===================================================================
--- Makefile.in	(revision 62193)
+++ Makefile.in	(revision 62194)
@@ -411,7 +411,7 @@ probes.@OBJEXT@: $(srcdir)/probes.d $(DT https://github.com/ruby/ruby/blob/trunk/Makefile.in#L411
 rb_mjit_header.h: PHONY probes.h
 	$(ECHO) building $@
 	$(Q) $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -DMJIT_HEADER $(srcdir)/vm.c $(COUTFLAG) $@.new -E -P -dD
-	$(Q) (cmp $@.new $@ && $(ECHO0) $@ unchanged && $(RM) $@.new) || $(MV) $@.new $@
+	$(Q) $(IFCHANGE) $@ $@.new
 
 $(MJIT_MIN_HEADER): rb_mjit_header.h $(srcdir)/tool/transform_mjit_header.rb
 	$(ECHO) building $@

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