From 3fe45a3123760ba911fd21b1cfd1a44ce6745b0d Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 15 May 2023 19:10:24 +0900
Subject: Process parse.y without temporary files

---
 common.mk | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

(limited to 'common.mk')

diff --git a/common.mk b/common.mk
index 75247ddeb3..16ff4c5cda 100644
--- a/common.mk
+++ b/common.mk
@@ -924,13 +924,8 @@ PHONY:
 
 {$(srcdir)}.y.c:
 	$(ECHO) generating $@
-	$(Q)$(BASERUBY) $(tooldir)/id2token.rb $(SRC_FILE) > parse.tmp.y
-	$(Q)$(YACC) -d $(YFLAGS) -o y.tab.c parse.tmp.y
-	$(Q)$(RM) parse.tmp.y
-	$(Q)sed -e "/^#/s|parse\.tmp\.[iy]|$(SRC_FILE)|" -e "/^#/s!y\.tab\.c!$@!" y.tab.c > $@.new
-	$(Q)$(MV) $@.new $@
-	$(Q)sed -e "/^#line.*y\.tab\.h/d;/^#line.*parse.*\.y/d" y.tab.h > $(@:.c=.h)
-	$(Q)$(RM) y.tab.c y.tab.h
+	$(Q)$(BASERUBY) $(tooldir)/id2token.rb $(SRC_FILE) | \
+	$(YACC) -d $(YFLAGS) -o$@ -h$*.h - parse.y
 
 $(PLATFORM_D):
 	$(Q) $(MAKEDIRS) $(PLATFORM_DIR) $(@D)
-- 
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