https://git.ruby-lang.org/ruby.git/commit/?id=fafabe2f43

From fafabe2f43ecd58588ac89edc5c177dd956825ad Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 26 Aug 2019 16:11:53 +0900
Subject: Add INCFLAGS for fake.rb

INCFLAGS is not included in CPPFLAGS on mswin, not to be exported
to rbconfig.rb.

diff --git a/common.mk b/common.mk
index c10e3ba..c647f89 100644
--- a/common.mk
+++ b/common.mk
@@ -727,7 +727,7 @@ no-fake -fake: PHONY https://github.com/ruby/ruby/blob/trunk/common.mk#L727
 # version.o depends on.
 $(arch)-fake.rb: $(srcdir)/template/fake.rb.in $(srcdir)/tool/generic_erb.rb version.$(OBJEXT) miniruby$(EXEEXT)
 	$(ECHO) generating $@
-	$(Q) $(CPP) -DRUBY_EXPORT $(CPPFLAGS) "$(srcdir)/version.c" | \
+	$(Q) $(CPP) -DRUBY_EXPORT $(INCFLAGS) $(CPPFLAGS) "$(srcdir)/version.c" | \
 	$(BOOTSTRAPRUBY) "$(srcdir)/tool/generic_erb.rb" -o $@ "$(srcdir)/template/fake.rb.in" \
 		i=- srcdir="$(srcdir)" BASERUBY="$(BASERUBY)"
 
-- 
cgit v0.10.2


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