https://git.ruby-lang.org/ruby.git/commit/?id=c86d1fbed5

From c86d1fbed5e887ea7b59582510fb26ec912b7898 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 29 May 2019 09:46:44 +0900
Subject: Create empty revision.tmp if no BASERUBY


diff --git a/common.mk b/common.mk
index 2505059..6199119 100755
--- a/common.mk
+++ b/common.mk
@@ -1092,8 +1092,10 @@ $(srcdir)/revision.h: https://github.com/ruby/ruby/blob/trunk/common.mk#L1092
 	$(Q)$(gnumake:yes=#) exit > $@ || exit > $(@F)
 
 revision.tmp: $(srcdir)/version.h $(srcdir)/tool/file2lastrev.rb $(REVISION_FORCE)
-revision$(HAVE_BASERUBY:yes=.tmp): $(srcdir)/version.h $(srcdir)/tool/file2lastrev.rb $(REVISION_FORCE)
+revision.$(HAVE_BASERUBY:yes=tmp): $(srcdir)/version.h $(srcdir)/tool/file2lastrev.rb $(REVISION_FORCE)
 	$(Q) $(BASERUBY) $(srcdir)/tool/file2lastrev.rb -q --revision.h "$(srcdir)" > revision.tmp
+revision.$(HAVE_BASERUBY:no=tmp):
+	$(Q)exit > $@
 
 $(REVISION_H): revision.tmp
 	$(Q)$(IFCHANGE) "--timestamp=$@" "$(srcdir)/revision.h" revision.tmp
-- 
cgit v0.10.2


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