From d516910b61586fc6de676cf75930788594afe479 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 10 Jul 2023 16:36:03 +0900
Subject: [PATCH] Serially update only the ripper source, even with old GNU
 make

---
 common.mk     | 3 +--
 defs/gmake.mk | 9 +++++++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/common.mk b/common.mk
index 7d2edee208..475a4d126f 100644
--- a/common.mk
+++ b/common.mk
@@ -1268,8 +1268,7 @@ $(REVISION_H)$(yes_baseruby:yes=~disabled~):
 # uncommon.mk: $(REVISION_H)
 # $(MKFILES): $(REVISION_H)
 
-ripper_srcs: $(RIPPER_SRCS)
-.NOTPARALLEL: ripper_srcs
+$(DOT_WAIT)ripper_srcs: $(RIPPER_SRCS)
 
 $(RIPPER_SRCS): $(srcdir)/parse.y $(srcdir)/defs/id.def
 $(RIPPER_SRCS): $(srcdir)/ext/ripper/tools/preproc.rb $(srcdir)/ext/ripper/tools/dsl.rb
diff --git a/defs/gmake.mk b/defs/gmake.mk
index 2c03022434..f51fd405a5 100644
--- a/defs/gmake.mk
+++ b/defs/gmake.mk
@@ -495,3 +495,12 @@ matz: up
 
 tags:
 	$(MAKE) GIT="$(GIT)" -C "$(srcdir)" -f defs/tags.mk
+
+ifneq ($(DOT_WAIT),)
+ripper_srcs: $(addprefix $(DOT_WAIT) ,$(RIPPER_SRCS))
+else
+ripper_src =
+$(foreach r,$(RIPPER_SRCS),$(eval $(value r): | $(value ripper_src))\
+	$(eval ripper_src := $(value r)))
+ripper_srcs: $(ripper_src)
+endif