https://git.ruby-lang.org/ruby.git/commit/?id=67417e795a

From 67417e795a3e5af8e64d3b3c3440ff5e7306707d Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@g...>
Date: Sun, 18 Sep 2022 00:09:41 +0900
Subject: Replace revision.tmp with the HAVE_BASERUBY trick

but without relying on replacement.

This seems to work on OpenBSD as well.
---
 common.mk | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common.mk b/common.mk
index 90d507806a..5f016d6fc3 100644
--- a/common.mk
+++ b/common.mk
@@ -1213,7 +1213,9 @@ $(BUILTIN_RB_INCS): $(top_srcdir)/tool/mk_builtin_loader.rb https://github.com/ruby/ruby/blob/trunk/common.mk#L1213
 
 $(srcdir)/revision.h: $(REVISION_H)
 
-revision.tmp:: $(srcdir)/version.h $(tooldir)/file2lastrev.rb $(REVISION_FORCE)
+revision.$(HAVE_BASERUBY:no=tmp)::
+	$(Q) $(NULLCMD) > $@
+revision.$(HAVE_BASERUBY:yes=tmp):: $(srcdir)/version.h $(tooldir)/file2lastrev.rb $(REVISION_FORCE)
 	$(Q) $(BASERUBY) $(tooldir)/file2lastrev.rb -q --revision.h --srcdir="$(srcdir)" > $@
 
 $(REVISION_H): revision.tmp
-- 
cgit v1.2.1


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