https://git.ruby-lang.org/ruby.git/commit/?id=37593c7950

From 37593c795040ec5266bf86f9ae1c1e052af5dc9f Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sun, 30 Oct 2022 20:35:41 +0900
Subject: Ignore failure at moving revision.h [ci skip]

The source directory may be read-only.
---
 common.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common.mk b/common.mk
index d6cbffe6d6..2bf44b530f 100644
--- a/common.mk
+++ b/common.mk
@@ -1234,7 +1234,7 @@ revision.$(HAVE_BASERUBY:yes=tmp):: $(srcdir)/version.h $(tooldir)/file2lastrev. https://github.com/ruby/ruby/blob/trunk/common.mk#L1234
 	$(Q) $(BASERUBY) $(tooldir)/file2lastrev.rb -q --revision.h --srcdir="$(srcdir)" > $@
 
 $(REVISION_H): revision.tmp
-	$(Q)$(IFCHANGE) "--timestamp=$@" "$(srcdir)/revision.h" revision.tmp
+	-$(Q)$(IFCHANGE) "--timestamp=$@" "$(srcdir)/revision.h" revision.tmp
 
 $(srcdir)/ext/ripper/ripper.c: $(srcdir)/ext/ripper/tools/preproc.rb $(srcdir)/parse.y $(srcdir)/defs/id.def $(srcdir)/ext/ripper/depend
 	$(ECHO) generating $@
-- 
cgit v1.2.3


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