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-rw-r--r--win32/Makefile.sub2
1 files changed, 1 insertions, 1 deletions
diff --git a/win32/Makefile.sub b/win32/Makefile.sub
index 15f13a90ca..a32639728b 100644
--- a/win32/Makefile.sub
+++ b/win32/Makefile.sub
@@ -1189,7 +1189,7 @@ probes.h: {$(VPATH)}probes.dmyh
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 $@